I don't seem able to use the "comments" feature, thanks to MT's poorly implemented java. So, here are my comments:

My point wasn't that we hadn't realized that Lana was from the superhero universe. My point was that we failed to appreciate that since A) she was from the superhero universe and B) she was a villain, therefore C) she was compelled to reveal her evil plans to us for no real reason. Because that's just how things work where she comes from.

As for abuse of Tony's power, this appears to be a concern in theory, but not in practice, so far. We've talked a lot about using Tony's power in abusive ways, but it's never ended up working out that way. In the Lana adventure, for example, all we ended up doing was retroactively creating a comic book convention. And then the plot was resolved before the convention took place, anyway (although Bender will be pleased to learn that we invited Frank Miller). Hardly pivotal to our success.

Plus, it's my understanding that it takes all of Tony's miracle points to do a single time jump. At worst, then, that gives us one "do over" per story. That doesn't strike me as too much for the GM to plan for.