Well, you could do it in your own time if you were so company minded. Or you could chip, chip, chip away at it during flight. And then there's standby...
Besides, what would you rather do, Agaricus: spend another day in a classroom in LTN, or go flying? I'd rather stay at home and do neither, to be honest, but I'd choose the flying over a classroom in LTN any day!
I don't think we need to know a stunning amount about the aircraft; just how to fly it, what to press and when to press it. But we do need to know where to find information, and this is exactly what the tech questionnaire helps us achieve.
FQ