Why was there such a backlash to the Snyder Cut movement?

I never understood that. Ever since the movement to release the Snyder Cut began, there were a bunch of online detractors who accused the movement’s supporters of being toxic alt-right man babies who were trying to harass a poor little multi-billion dollar company. I didn’t even care for the movement until about some time last year, but even then, I never got why people like MovieBob were so against it, or why people seemed to ignore the fact that the movement actually helped raise money for suicide prevention.