This film has been in the works for nearly a decade
America has had two real presidents and one bright orange moron in the oval office in the time its taken this movie to come out
And the final result is a film that has no connection to the Flash lore or characters, loosely adapting the worst Flash story but in a way that has no real connection to that either
The MCU introduced, developed and then wrote out an entire cast of characters across five films in the time it took this one movie to come out
This is how Hollywood, mostly Warner Bros., fucks up superhero movies.
Step one is to have some incompetent, meddling producers take the film away from a filmmaker that understand and care about the characters and story. The step two is to give the film to some hollywood heads who just see it as a job and honestly do not care what they make as long as it makes money.