She's flown twice since. The first time there was some odd pressure on the way back that freaked her out, the second time no issues. We're fairly frequent flyers. Docs did not recommend against flying. For stroke the general recommendation is that "weird feelings" aren't an underlying indication of anything -- "strokes only take away, not add" (hence why all the actual indicators of an acute stroke are things not working, rather than weird feelings) so to not panic. I would presume if my wife's stroke was caused by an underlying pathology throwing off clots rather than a dissection they would probably recommended compression gear for flying, but it wasn't and they didn't. But I could imagine that given the odd things going on with pressure and air and sitting still, there's a lot of factors that could contraindicate flying with a past TBI.

Hope your partner is doing well. :)