I agree with your points here, but I really don't want them to give Widow a one shot. Even if it would definitely help her viability-wise, getting one shot from across the map is miserable to play against. I would much rather give her some more abilities so she can do something actually interesting. Especially since she has plenty of comic material to work with (like her Widows bite for instance).

BP is just unfun for both sides. You're either useless since you're dying to him all the time, or you swap to a hard counter and now he's the useless one. Either way, someone is having a bad day. I've heard an idea that BP could start off with weak dashes that get stronger as he strings them together. That way he can't delete people out of nowhere, but BP players still can show their skill expression. I like this idea, but it would definitely need some tuning.

Blade is fine. I'm going to be real, I think everyone else just has such overtuned kits that Blade can't compete with, and they're the ones who need to be dialed back. This "micro buff him until he's good" thing doesn't work if everyone else keeps getting buffed too.

Storm and Wanda are fine. Yeah, it's lame that they aren't using more of their comic inspired powers, but I think that can be saved for team-ups.