Re: Was it just me?
"I like much of Moffat's work, including some of the Dr Who episodes he's penned, but it seems he's at his best in small doses - Sherlock and Jekyll being my favourite examples of where he delivers small, self-contained masterpieces."
Yes, I think that sums up the entire problem with the whole of the reboot series, most obviously this current series. Stories are too short and end up with a hurried solution in the last few minutes and no clear back story to link the episodes into a coherent series. And no, a "surprise" in the very last episode "explaining" the back story isn't good enough if there are no clues to allow the viewer to work it out for themselves over the span of the series.
Back in Ye Olden Days, the episodes were half the current length but the story ran across several episode or even the whole series with a cliffhanger at the end of each episode. This gave time to develop the characters and work though a proper plot with a decent lead up to a solution.