At least there seems to be no point hiding spoilers anymore.
I didn't like that Brand New Day had a lot of negative connotations. The idea of Peter Parker as a relatively successful man moving on with life with a wife was considered something that readers couldn't relate to. So instead, they made it where he never married a beautiful woman and lived with his aunt again. Because that's a way to tell readers who you think they are and who you think they should be. Then, on top of that, he gets drawn to resemble the writer and begins to date a girl named after the writer's daughter.
I don't see that one as being so much about the story, which features him supposedly doing something a little risky in Civil War, and then it being completely undone. A good commentary on a lot of risks taken in comic books, it seems.
Now this dying Wish and Superior Spider-Man stuff comes along, and it changes the story a great deal more than anything else. Gone is the idea of "With great power comes great responsibility". Ock never got that lesson, remember? He basically wants to show him up. Oh, and the villain won. I'm sure they'll come up with some way to bring back Peter Parker, but basically he got defeated in every possible way. Beat up, hated by all his allies and loved ones, and argued into seeming to be a worse person than a man who attempted to kill almost everyone on earth (I'm remembering Sally Floyd's speech to Captain America for some reason here).
Oh, and while we're at it, the villain also appears to be right because he's apparently also doing better than Peter did.
Wow. Well, that doesn't just spit on the character any. Make a character that you're supposed to relate to, then say that the forces of injustice he struggled against in the world not only win but are right to do so, that the a-holes you run into in life would be a better person than you and more competent?
As for John Cena, he's disliked a great deal because he's your standard all-American face that went stale in the early 90s who is invincible roughly on the level of Hulk Hogan, who has been over the hill since the early 90s, and because of his weak wrestling ability. There's a reason why The Rock, an iconic anti-hero of the late 90s, was so massively over when they faced off. That last part is only exacerbated by WWE being a poor representation of wrestling, especially with how much it favors big men and power styles.
I think people would be more willing to accept changes to characters if they weren't these sudden, messy retcons. Like Peter Parker's marriage in the first place. What gets on people's nerves more is the story equivalent of non sequiturs.