highlander at the highest level right now is just pocketing and playing around your sniper until he gets a pick. people will push off of sniper picks because they're just as valued as a demo pick is, and if the other team is playing correctly, the only way you're going to consistently get a sniper pick is from another sniper. prolander will just turn into a game where the performance of your sniper will heavily rely on whether or not you get the W.
i think stabby's a super cool guy and all, but you can't trash talk 6s for being stale while simultaneously backing the most stale gamemode in tf2.