10 Things The MCU Needs To Do With The Fantastic Four
8. Frequent Crossovers
While some critics lament the constant crossover between MCU properties, feeling it devalues each entry as a standalone experience, with the Fantastic Four, that's a genie you can't really put back in the bottle.
The Baxter Building is open to the public, and the Richards family is VERY sociable and loves mingling with the Marvel universe at large. Reed Richards, despite his often...difficult demeanor, is VERY good at making friends, with superheroes across the Marvel universe being more than happy to step in and help whenever he so much as asks for it. That's why whenever they need a replacement member for the FF, Reed is the one who ends up being the deciding vote on who it should be, because his contact list is just that long.
Showing other heroes just casually coming and going from the Baxter Building is about as true to the comics as you can be when it comes to the FF's dynamic in the Marvel universe.