She is only allowed to fly to her destination, not anywhere else. She notices that she is not where she should be, that she cannot progress to where she was told to go, and she careens out of control when her wings won't flap anymore, and she crashes.
"You'd think that. And, well, it is, but... he's the Emperor. I get to be only mildly paranoid about how I interact with you, because I don't rule three planets. The Emperor can't take the risk that you might secretly be scamming us about how this whole system works. I don't think you are, he doesn't think you are, I'm not even sure Eleven actually thinks you are, but security is security and... the magical unilateral liege relationships are an especially upsetting possibility, I think."
"Not that I want you to be more paranoid, or anything, but it's more or less traditional to ask a new vassal for all the names they know anyway."
"Which would save you two hours. Concealing the Emperor's name from you if you really want it is a lost cause; that's why everyone is so aggressively paranoid about making sure you can't communicate directly with him in any way. For similar reasons you're very unlikely to meet Eleven."
"...I think I won't extensively theorize about how I'd conquer the planet if I wanted to. It sounds much less hassle all around to just buy one."