I think - relative to the character selection - it was a situation where Hasbro was stranded between what they could and couldn't show, and there was no real '2nd tier' in this movie. There was front line main characters, defended against day one spoilers, and people who had nothing to do with anything and therefore were ok to promote, except those characters by and large either got pushed into deep background (the equivalent of Kenner leading out with say Wuher in 1978) or pushed out of the movie altogether (Zuvio, Sarco Plank). So that's one aspect that I don't think worked, especially in the wave with PZ and Hux where the majority is people not on screen.
So the combo of not enough Rey relative to the seeming avalanche of Who the F is this has made for some odd pegs at retail, but as others have pointed out, Hasbro has clearly $$$ in on TFA and isn't looking back. There will be come course corrections with Rogue One (Rey all over the place, maybe less who is this, but doubtful - that ship has largely sailed) but all in all TFA got SW back on track in the toy aisle and that matters. It's not all fun and games but then, it hasn't been for a lot of us for a long time.
Playsets - just not a factor anymore in SW. Clearly Playmates is giving it a go, but the play pattern for SW has been broken for a very long time. It's about the figures and nothing else. LEGO owns environments and until Hasbro finds some answer or counter to that, we've seen the last of anything outside of significant vehicle / playset combos (Falcon, AT-AT, etc.)