I agree Matt got the short end of the stick, it was pretty sad excuse for a sendoff. I mean, no matter how melodramatic and plottily sketchy End of Time was for Ten’s sendoff, I’d never complain that it lacked emotion.
I’m not River’s biggest fan, but I’d definitely have preferred River in the role of the nun-commander for the Church of the … Whatever. That could’ve been interesting. Instead we got another cardboard cutout Strong Female Character® who can inexplicably fly the TARDIS and has romantic-flirtatious history with the Doctor. Again: Moffat wasting screen time with undeveloped characters we don’t know or care about, instead of giving us satisfying emotional engagement between characters we know and want to see for a Big Finale Episode.
Why didn’t we get a plot with a legitimate reason for River and Amy to show up and help the Doctor and Clara? Why not Amy and Clara working together to help him? Then they could be there for the regeneration, instead of giving us random Amy hallucination before Eleven sneezed and turned into Twelve.
So much potential, so much waste. The story of Moffat’s stint as showrunner.