Torts doesn't mind mistakes like the one Frost made as much as lack of effort or not paying attention to defensive assignments. I will give him some credit for that.
He's said he wants players to take risks, it's part of learning and development.
What will get you benched:
1) repeat mistakes, to err is human, to repeat errors is stupidity
2) half ass it, don't fight for the puck in the corners, don't back check aggressively
3) carelessness, I think stick penalties where players don't control their stick and widely flail drive him crazy (from his expressions on the bench). Using your stick instead of moving your skates . . .
He doesn't mind penalties from being overly aggressive, or standing up for teammates, but he wants players to show situational awareness (revenge is a dish best served cold, or at least not when the game is on the line). He wasn't upset with TK negating that goal (though he made no excuses) b/c TK was doing what they wanted, going to the net, just wants him to be more aware of the blue paint next time.
Torts has been very patient and measured in his pressers, he knows the team is rebuilding, he knows they can't match up talent wise and struggle with physical teams. He knows he has some shaky goalies. As long as they work hard and don't give up he's satisfied (not happy, only winning the right way makes him happy).