While The Vision doesn’t have as large a fanbase as heroes like Batman or Spider-Man, there are certainly plenty of longtime Marvel readers who appreciate him.
So for someone like Kevin Feige, who was absorbed in Marvel tales long before he was producing Marvel movies, I can understand why seeing The Vision finally being realized for a live action story could be emotional.
Paul Bettany’s version of the character looked quite similar to his comic book counterpart, and let’s be honest, if it wasn’t for the MCU, we may never have seen Vision depicted in a movie.
As Bettany noted when speaking with HeyUGuys, these are movies “made by fans,” so while Feige is obviously concerned with ensuring each MCU entry is critically and commercially successful, it’s a bonus that the man gets to see characters he’s spent years reading about are getting their proper due on the big screen, including The Vision.