It was completely unnecessary in regards to the Widow/Hulk romance. It felt like it was out of no where because there was no build up to it. If they'd maybe made Banner and Romanoff good friends, start subtly hinting that there could be something more, but without devoting
too much subplot time to it, it could've worked in the long run. But the whole subplot ending with a "lets run away together!" was a waste of time that could have been devoted to literally anything else. The deleted scene with Thor and the infinity stones vision, more character development for the twins, explanations about Hawkeye and his family - where he was during the fall of SHIELD, etc.
I will forever be so angry and bitter about killing off Quicksilver
I could have
maybe accepted it story wise if it had.... Actually made sense??? Like, the idea Pietro got shot saving Clint - that idea works, but the death makes no sense? Pietro didn't push the overturned car in front of Hawkeye and the kid, because the car doesn't move from its spot in the debris. Pietro doesn't push Clint and the kid out of the way because, again, they haven't moved either - if you were pushed at super speed, you would fall over, not remain in the same position. Pietro's blue blur is shown around Clint and the kid, implying he physically moved them. So, without pushing them, it would mean he lifted them and moved them: so then why is Pietro back in the line of fire? Surely, if he picked them up and moved them, he would have moved with them, not moved them, then gone BACK into the line of fire, only to be facing towards them again when it cuts to the wider shot?
As you can tell, I've thought a
lot about this. As for the death giving Wanda an arc, again I would understand - except that Pietro wasn't mentioned at all in Civil War. No grieving shown, no hints at missing him, nothing. It's grasping at straws,
but I kind of hope that means Pietro's in stasis or something, somewhere, healing before Infinity War.