"And let me guess: for most mages, that's a fate worse than death." Having all that knowledge at your fingertips and then losing access to it? He doesn't need to be a mage to know how that would turn out, though he privately thinks that if they didn't have combat aptitude before, being expelled would be excellent motivation to gain some.

"Put it that way, feels like witchers get off easy." He picks up a bomb from the table, absently hefting its weight in his hand. "We don't have to deal with all those politics. Doesn't stop people trying to tell us what to do anyway, but it's a lot harder to force us to."