Right, but she still does it, by virtue of not making mistakes her flight can learn from. The sort of mistakes she's going to make will be things like "Don't use the wave motion gun in sims" as opposed to, "Okay class, can anyone tell me what Anna should have done differently in Scenario X"
And sometimes she forgets to tone things down when the instructors aren't around to prompt her, because she zones out or goes into her highly dangerous fugue state. The disastrous sim being an example; there's nothing her flightmates can really learn from that except "OH GOD OH GOD OH GOD OH GOD"
It was less that she's
doing terrible things, and more that the UN, the scientists, and the instructors are
aware that terrible things are definitely a possibility here, and that her flight's an acceptable sacrifice in that possible case. Basically, they weighed the possibility of a resocialized Anna as being more valuable than a properly trained flight.
edit:
What he said