In the earliest days of Doctor Who back in the 1960s, everything about the Doctor was a complete mystery, from his name to his planet of origin. It is difficult to imagine now that back then people had no idea that the Doctor was even a Time Lord, and they certainly had no idea that they came from Gallifrey. In fact, one could argue that this was one of the main things that made the show so fascinating to viewers, the mystery of who and what the Doctor actually was.

However, over the course of Classic Who the many questions about the Doctor’s origins were answered one by one, to the extent that we not only know that the Doctor is a Time Lord from the planet Gallifrey, but also that he comes from the Prydonian Chapter, that he attended the Time Lord Academy, and that the TARDIS he stole is a Type 40 with a malfunctioning Chameleon circuit.
It goes without saying that the Time Lords are a powerful race, as they are responsible for assuming the role of custodians of time and space, protecting the established web of time, and maintaining the delicate fabric of the universe. The Time Lords are capable of wiping entire races from existence, retro-engineering the evolution of their enemies to ensure that they do not achieve sentience, and if necessary removing entire empires from history.

In recent years, however, the Time Lords have diminished in importance. Episodes set on Gallifrey, which were once a fascinating insight into the Doctor’s homeworld and history, became tedious slogs through dense lore and bureaucracy by the end of Classic Who. Russell T. Davies wisely side-stepped having to write Gallifrey episodes by destroying the entire Time Lord race in the Time War, which was controversial at the time but is now generally considered to have been a good decision in the long-run as it opened up new narrative opportunities for the show.
This was obviously done to provide some emotinoal weight to the Doctor’s story, but this proves just how disposable the Time Lords are as a plot device, as the entire species was wiped out – presumably for good – just to give the Doctor a tragic backstory for the revived series. This was definitely the right move, as it gave the Doctor a strong character arc the likes of which the series had never seen up until this point, and it meant that there was an aspect of mystery to the Doctor’s character once again.

By the time Steven Moffat took over as showrunner, the Time Lords were in an interesting narrative flux. Although they were essential to Doctor Who lore, with characters like Romana, the Master, the Rani, Rassilon and many others being closely linked to Gallifrey, the Time Lords also presented a massive amount of narrative baggage as they were so closely linked to the Doctor’s past, and with the effects of the Time War added into the mix the writers were backed into a tight corner when it came to expanding the show’s backstory and lore.
When the 50th Anniversary came around, the writers took the opportunity to do something potentially controversial in order to free future writers from the narrative weight of the Time War. Moffat was able to bring Gallifrey back in a way that did not invalidate Russell T. Davies’ earlier work, as the Doctor’s psychological scars from destroying Gallifrey at the end of the Time War remained even though the Time Lords were able to survive the war and hide Gallifrey away at the end of the universe. The fact that the War Doctor cannot retain the memories of saving Gallifrey means that the character development of the Ninth and Tenth Doctors was preserved whilst also restoring Gallifrey to the forefront of the series lore once again.

Nonetheless, it was clear that the Time Lords still presented a narrative problem, as Hell Bent proved that the Doctor held little nostalgia for his lost homeworld, particularly after the horrors that the Time Lords unleashed during the Time War. In fact, the Doctor banished Rassilon and the other members of the High Council and took the role of Lord President before promptly leaving the planet after rescuing Clara, demonstrating just how little attachment he had to Gallifrey at that point.
Chris Chibnall’s decision to once again remove the Time Lords from the equation by destroying Gallifrey and then revealing that the Doctor is actually far more than just another Time Lord restores an aspect of mystery to the character of the Doctor that has arguably been lacking since the 1960s. Though fans now will inevitably complain and cry heresey as the long-established lore of Doctor Who is ‘destroyed’, as we have seen from previous controversial decisions taken by showrunners this change can only be good for the franchise.
In the long run, the show can finally shed the narrative baggage that the Time Lords present after so many years of being tied to the same backstory and lore. Doctor Who has always been about change and this philosophy has kept it alive when so many other shows have finished or been cancelled. There are few shows out there that could theoretically go on forever, and Doctor Who is one of them. But in order to continue, it has to change, and the longer it stays on air, the bigger those changes will have to be. Fans can either accept the change and move on, or reject the change and be left behind.