Agreed, but that doesn't mean he would be a terrible character in the MCU. The audience doesn't know who the shit the Wrecking Crew are, and have zero investment in them. You'd have to spend half the movie introducing them, making them a credible threat ( against Hulk lol), and make them something more than a slugger like Abomination. The audience already has an established investment in both Thunderbolt Ross (two unrelated films) and the Leader (a main character heavily hinted at being the next threat). Both are credible threats to the Hulk in their own way, they have different strengths they could play off each other, and it would take very little set up to get to the Hulk Smash.
This notion that a crappy comic villain would make for a crappy film villain is preposterous. It just depends on how the writer, director, and actor handle & portray him.