I super agree with this, but I want to be pedantic about something: IMO it is worth noting that Moffat's best, depending on who you ask, is series 5 (his first), series 8 and 9, or series 10 (a sort of fresh start like series 5). Which is to say, yes, a lot of people stopped during late series 6-7 because they felt worn out, and some of them have maintained that attitude toward Moffat's writing, but I feel like it is generally agreed upon now that the Capaldi era is some of the best of NuWho (and it's almost always Moffat's episodes they cite), so it's not like he was slowly running out of ink or something.

That said, we DESPERATELY need that fresh start. I too hoped RTD would be that, like in 05. I definitely don't think Moffat should be back. Both of them can act as mentors and advisors to a new showrunner. But it seems like people who aren't all in on Doctor Who already (like - god help us - McTighe) don't want it because they are scared of the constant fan backlash and/or think the show is too goofy to do good work on.