That's what I was sayin'. And you're right, even the whole "everyone's tied up" ******** is lame.
INT. STARK MANSION - DAY
Tony gets invaded by Whiplash II (Vanko's son) and calls SHIELD for help...
Tony: "Fury, its me, Tony, I'm in trouble, guy! Send the boys asap!!!"
Fury: "Sorry, broski. Cap's fighting Zola & his peeps in Antarctica, Thor's on a campaign against the Dark Elves of outer space planet 3489 & Hulk's been on a 3-day fight (and counting) with The Juggernaut. I'd give you a hand myself but us SHIELD guys are serving as mediators for Israel & Iran at the time."
Its pretty ridiculous & implies the world is a superhuman madhouse.