I made a comment somewhere else, but the biggest issue is that Riot has forced some fighter traits (her consistent-dps Q and her honestly kinda super lame ultimate) onto an assassin.
So you have the people playing her like a fighter, and people playing her like an assassin. The stealth change is heavily noticeable by the assassin players, while the fighters think she's "gutted" without the move speed.
Now, I'm all-for people doing whatever playstyle they feel is effective, but her lore, character, passive, and W all heavily beyond a doubt make her an assassin. Unfortunately, Riot doesn't like her whenever she's an assassin, and so the easiest "effective" way to play her is a fighter playstyle.
The problem caused by this is that Riot keeps shoving Fighter traits onto her, but still is acting like they want her to be an Assassin. The passive change was the first thing in a long time supporting an Assassin playstyle that they've made since her last rework. The end result is "fighter Eve" players pretending she's "supposed" to be a fighter and not liking changes in the assassin direction, while "assassin Eve" players not liking the last like 4 changes they did before this that nudged her in a fighter direction.
Frankly, half of Eve's current kit should've gone to a fighter champion ages ago. She's not a fighter, and nothing about the character would imply she is other than some bad kit changes Riot has made to her. Riot needs to stop trying to make a champion with her background into a fighter, and try to make a her a healthier assassin, and then put the fighter traits of Eve (her sustained Q damage and her ultimate) onto a new fighter's kit, and all the problems will be solved.