I figured it out! Age of Ultron is actually a bad dream that Squirrel Girl is having due to eating some bad shrimp after a night out with the rest of the Great Lakes Avengers.. At the end of the series she'll wake up and everything will a-okay! This way "Age of Ultron" is actually taking place in the current MarvelU, but it's all just an elaborate dream sequence. Right? Either way, I'm enjoying it.