Rings of Ahkaten was a very mixed bag for me. I agree that it was over-the-top and rather non-sensical in the parts you mentioned (though, I interpreted the "never run away unless we have something precious" differently).
However, that said, I totally got teary-eyed when the Doctor started yelling at the space parasite. For some reason, the Doctor crying gets me going, and I don't usually cry during TV and movies.
I kind of feel like the whole episode may have been a flimsy premise to have the Doctor and Clara put their "I'm so lonely!" cards on the table for each other. I'm still looking forward to the rest of the season, but Akhaten confirmed that Moffat has run out of steam has a showrunner. Really looking forward to someone else taking the helm (and, if reports are to be believed, a new Doctor come year's end).