Absolutely not, What If...? showrunner checked the wiki to test her Marvel knowledge. Marvel Television also checked our wiki when it came to dates and other things. So they can, I don't know what Marvel Studios (big execs, and showrunners) do, but at least some have checked it. Also, Jac Schaeffer seems to be kind of oblivious about some stuff, I am sure she didn't know AoS was MCU or something.Is there some legal stuff that prevents Marvel Studios from reading the MCU wiki, I wonder? Going there would help a lot.