Lol. Oddly enough we had awesome movies before the MCU, and awesome movies will still be made after it's dead and gone. I refuse to believe that the movie industry would be much different at all without all the Marvel schlock. We don't need it. What hole to fill? A bunch of garbage, bloated content that almost nobody asked for being pumped out ad infinitem? Okay?
It was a huge phenomenon, and it's now dying, and I'm sure many of the people involved are now in the denial stage of grief over the project. Sebastian here is just coming off like someone with a huge vested interest in defending the schlock, because that's what he has.
The MCU had heart at the start of it and through much of its life, but all that heart is gone now and replaced with a bunch of money grubbing producers and executives with little creative talent, or interest, or a story to tell. It's time for the next inspiring project to come along, one made out of passion. That's the only hole that needs filling.