The more I think of it the more frustrated I am at the lack of crossover with the movies. I thought Winter Soldier was the beginning of something bigger, but instead that's the high point and now we're approaching the uncanny-valley of shared universe plotting.
Daredevil is great, you offer a couple throw away lines about the invasion of New York, and then it does its own thing, and it feels totally natural because there's no reason (yet) that Daredevil should connect to Agents of SHIELD, or Age of Ultron, or anything else.
Agents of SHIELD, on the other hand, is looking increasingly like something that will never truly tie into the movies despite how obviously SHIELD (the agency) should. After Winter Soldier, with Hydra exposed, Hydra became the show's problem, which makes total sense and I expected, but I thought it would come back and continue to affect the movies. Instead, Age of Ultron reveals Hydra to be almost completely done for already and they finish it off with capturing Strucker and moving on to the "real" plot of the movie. The show paid lip service to leading into Ultron with the tidbits about Loki's staff and Theta protocols, but none of that knowledge was necessary to watching Age of Ultron. Those pieces are entirely unimportant to the movie.
The Coulson problem remains the most obvious issue; whoever decided to bring him back and whether they wish they had or hadn't, it's absurd that they haven't resolved his status with the Avengers yet.
I understand the tricky problem of making meaningful connections when you can't rely on moviegoers to watch the show. And your chances are much better in the other direction, most of the show viewers will watch the movie, but even then you can't be sure they'll watch it opening weekend to slot it correctly into the narrative's timeline.
So maybe it's not fair to expect more, but if that's the case, then I guess the current trajectory of the show will never work for me. Instead of getting invested in all the Inhumans events this season, I'm seeing through the story to the careful machinery underneath that's keeping the narrative only superficially connected to the future of the movies. I'm watching them set things up and then clean the slate so nothing truly important will happen on the show that can't be explained (or explained away) in a single line of dialog in some upcoming movie. These Inhumans will never be The Inhumans, or even meaningfully connected.
Maybe season 3 will surprise me. Maybe it will be Daisy running her covert Secret Warriors team, giving us a smart, self contained arc that doesn't keep posturing itself as important to the movie events, and the show will be better for it. I hope so. But I think the above is why I'm disappointed with the end of season 2.