I can tolerate the movies not mentioning Uncle Ben, but replacing him with Tony Stark is disgusting. Why does every appearance of spider-man in MCU has to be related to Tony Stark?What's wrong with not wanting to tie Spider-Man's growth to the irrelevant superhero?Other superheroes in MCU don't have that strong relationship with another hero.
I expect the mention of uncle ben cuz I hope it could remind people that Tony Stark is not the person who influences spiderman most.
All in all, Spider-Man shouldn't act like Iron Man's robin.