Ben as EP doesn't really mean much, Nolan was EP for BvS, same as Geoff Johns and like 10 other people.
Also it's weird that people jump on your back if you say there was a lot of hate against BvS before it came out, because there totally was, especially with Gadot, Eisenberg & Affleck's casting (turns out those three were highlights of the film and not the actual issue, wow!). There's no inherent implication that Disney is behind it or whatever, just that there's an uphill battle that WB had to fight coming after MoS and in a dominant Marvel movie arena, where they're going against the grain and not aping them. Same shit is going against ghost busters right now, internet hate train before they've even seen the film.