Just seen it, it was pretty similar to the previous one in terms of story structure and action outside of a few surprises. It was good enough and the main villain played by Chalize Theron was pretty cliche as well but the acting from her was as good as it would get for this type of movie. 7/10
The problem isn't Snyder its the studios interfering in the final product. Heck most of Snyder's movies the studio interfered resulting in his generally critically panned movies.
I wouldn't say critics go into reviewing a movie prepared to give it a bad/good review but what I would say however is that critics are fully aware beforehand the type of movie they are critiquing whether it be from a certain director, studio or actor and the reputations that those guys have in film and that certainly guides and influences their behavior towards the movie they are going to review. Most critics definitely uses a predetermined mindset going into reviewing movies.
Just think that Deadpool made more than BvS and Civil War combined, more profit that a movie with these characters: Batman, Superman, Wonder Woman, Spider-Man, Captain America, Iron Man
I think congratulations are in order.