Their age group isn't particularly relevant. Any judge that doesn't vote on T is a bad judge, I think. If there is a substantial enough contingent of judges floating around the GA circuit (college aged kids or otherwise) that arbitrarily refuse to vote on particular categories of argument that debaters in round feel compelled to ask whether or not judges will vote on it (literally every round), I would say that's a problem.
I would also say that the fact that the divisions were collapsed at Starr's Mill isn't particularly relevant either, if mentioning that is supposed to mean it's ok for JV judges to decide that they won't vote on T or K's either. Bad JV judges make bad JV debaters that will eventually become bad varisty debaters that won't know how to debate T or K's.
So you were 15/15 at Fayette on the varsity pairing, or was that for the lower divisions as well?