While I overall enjoyed this premiere, and like Doctor Who more than I don't since Moffat's taken over, I do think that there's something to be said about making stories inherently ABOUT the Doctor, because as has been pointed out - you sorta short-circuit the drama there because there's only so much any writer can really change before the status quo starts tugging at the character's pantsleg and starts pulling him back towards where he's always been.
But if the story's about someone else, and how the Doctor can help/hurt their ability to continue forward on the path they're on, then there are stakes again. They don't have to be huge stakes. Moffat has been really good at this before, which is why all the pomposity and grandiosity can get a little frustrating (as well as just trying in general) because the Doctor can change without having the events and the thrust of every story be some sort of reflection on his past or his person directly.
That used to be how the companions were best used, obviously, but some of the most affecting hours of Doctor Who come with characters we never met before the story started, and were characterized so well that you couldn't help but relate to them in some way. And it was whether or not THEY got through it alive, or had their goals achieved, that really gave the story tension and weight. Yes, the Doctor would almost always make their struggle his struggle, too. It's his show, after all. But there's a limit to how much of Doctor Who can be solely about the life of the Doctor, before you realize you're on a treadmill, and you can't really go anywhere like that