There really must be some sort of stipulation to use as many cast members as possible - even if it's one line in a short scene - because this was really a West-Allen family plot (but mostly Nora) from start to end, and it was just odd that everyone else was just standing around as spectators.
This episode seems to be showing that all West-Allens made questionable decisions that have affected their family. The questions is how will they be able rectify those mistakes, and become stronger going forward?
(Future) Iris shouldn't have kept secret Nora's powers or Barry's alter-ego as The Flash from Nora. The overprotectiveness and lies drove Nora to trust someone dangerous. Nora and (present) Iris' relationship has repaired with Nora forgiving her mother and understanding her point of view. And I assume with all that has happened, Iris will make different choices in the future with Nora.
Nora shouldn't have chosen a criminal as her mentor and lied to her family. (Not to mention all the messing with the timelines she's been doing.) She never went back to clear the air, etc., with her mother, or attempted to get her family/friends side of the story. Understandable, she felt betrayed; but I still find it very hard to believe that Eobard Thawne was her only option. She's been cordial to everyone to everyone on Team Flash in the present, so she mustn't have hard feeling toward their future versions, I would think.
Barry is clearly letting his emotions get the better of him; though it's also kind of understandable, he tends to get betrayed every year by someone on the team. This time it hurts extra hard because it's his own daughter, being manipulated by his mortal enemy.
Now, Nora is grown and isn't even supposed to be in 2019 anyway, so her getting booted to the future wasn't a problem for me by itself. The way Barry did it is the issue for me. I think he should have taken some time to cool down and get all the information. At least about what Nora knows about Thawne and what he has had her do, because he's the real threat here. (Though I can see how he wouldn't want to talk with Nora since she's been lying this whole time.) He took Nora back in anger without discussing it with Iris or Nora.
West-Allen family drama is one of the main ongoing stories this season, so I don't mind the conflict, and I'm here to see how it all shakes out. Hopefully with the family as a stronger unit (... and a twin brother).