Blue Basilisk: Misato wasn't appropriately shocked until later, when her PTSD started to set in. She was being a reckless moron before that.
I don't think the staff could have done anything even if they wanted to, since the Eva was beyond their control ("bousou?" was one of the first guesses about what was happening) and it's unclear whether they had any ability to reach Shinji in the plug (the editing may have just yielded such an illusion). Any which way, this thread is about Shinji's stupidity, not theirs.
The weird shit that was happening went above and beyond anything previous, and Shinji was being negligently reckless. Not only did he not question these powers that appeared out of nowhere and had absolutely no precedent (unless you're going to argue that Shinji is "genre savvy", which I seriously doubt...), he uses them in selfish pursuit of a miracle. Since when was using magic to ferry the souls of the dead part of his job description? He should have just killed the Angel and left it at that.
Of course, that wouldn't assuage his guilt for abandoning Nerv and leaving Rei to get killed by the Angel, but there are better ways to deal with guilt than playing recklessly with the fabric of reality using a giant top-secret biomechanical weapon. Hasn't he ever heard anything about not fucking with shit he doesn't understand? Just because you can do it, it doesn't mean you should. Doing whatever you want without consideration for the consequences could be considered a form of evil. So maybe Shinji is evil after all.
We avoid a lot of problems by going with the idea that the Eva is accountable in large part for this mess. I mentioned earlier that I personally abide by this, but good luck getting everyone to accept it. My impression that a lot of people are smitten with the notion that Shinji is simultaneously 100% in charge of everything
and totally not responsible for what happens. Which is a whole lot of "lolwut".