The problem is DC (and by this I really mean Warner) wants the franchise because they saw Marvel/Disney do it, and it means a lot of money. But Marvel spent 8 years and 6 films building to Avengers. Longer if you count the first Hulk movie which they acknowledge was a failure.
It was carefully planned and crafted with well acknowledged “phases” and editorial and production direction. And they worked hard at making real movies. Not just action films.
Warner doesn’t have that. They have the dark knight trilogy. But that was meant to be stand alone. Man of steel they didn’t really know what to do so they tried to have Snyder remake dark knight with superman in it.
Now they want avengers, and they’re trying to plan, but they’re a decade behind Disney so they’re trying to start in the middle.
That is “problematic”