Did you get sick of that same mentality in 12-14? How it was all about whether you're playing winning or losing hockey, not so much that you're winning or losing games? At least in the regular season. They weren't bad in Carolina. Although, yes, the TV crew is supremely annoying.
The real loser mentality is all the tanking talk. The coaches and players aren't out there trying to lose, so if they win, people will just get upset for no reason. They don't care about whoever the next prospect is.
As for this game, it wouldn't shock me if the Kings managed to win. I won't be surprised if they lose this 2 goal lead, and the game, either. But TB just came off the long winning streak, they have this 1 game at home before going on the road for 2, then a 10 day break, and then a California road trip. I could see this as a throwaway for them.