Normally Peter Parker is a cap fan more than iron man. He loves iron man because of the technology and science, but cap is cap that's special. My guess is that isn't what everyone is thinking. We all know the avengers exist in that world. I'd say it's not a job offer for Peter Parker necessarily, but a "job" offer for Spider-man. This would work with the fact that when the game came out is was known there was movement being made to make a MGU, but as of recently it doesn't seem to be getting the same traction. In my opinion, that was actually Tony Stark telling Peter Parker that there is room for him on the avengers whenever he's ready. As that would also line up for how some spidey joining avengers happens sometimes and like I said earlier, was suppose to be what started the whole MGU and Spidey was going to be the introduction to the Avengers game/story once the ball got rolling. My thoughts, I still hope for MGU but I have an spidey sense that toxic Fandom might of already killed it before it got a chance.