By the way, with effective stacks at 475 for the river, the fact that Villain raised to 350 but didn't shove is pretty bad. Who's calling 350 that much more than they call 475?
But yeah, if Villain was in the middle and raised, this is a turbo-fold.
As far as K7 and JT being equivalent--K7 blocks some hands like 77/A7/76, so for that reason only they are not. Also, Villain is described as a thinking player, but we don't know things like "Will he realize A
x
is no good and turn it into a bluff?" or "Will he raise trips no kicker to try to bluff us off a chop?" Because then K7 and JT are also not equivalent.
But to me that's an extremely small point, because I don't think this is a bluff very often. If Hero and Villain have history, it should be obvious from previous hands whether Villain is capable of running a bluff this sick often enough that we should consider calling, and Hero wouldn't have needed to post this thread.