Nothing really out of the ordinary on the game sheet.
He got two minutes for checking from behind, and two for roughing in that game, to go with a goal. I'd guess the check from behind is what Everett is complaining about.
Given Everett's Tyler Parker got a major and a game for kneeing in that one, its kinda surprising that Wahl's apparent infraction is the big news from that game.
http://whl.ca/stats/game-summary.php?game_id=1005307