How so? The whistle never blows immediately after a puck is knocked out of the air with a high stick. It's only blown if a player from the same team touches it first. In this case Quick was the next player to touch it. Then Dallas scored. The linesman had his arm up signalling high stick but put it down after Quick made the save.
The only question is: does the player from the opposing team just have to touch the puck to wave off the high stick? If so, or if they call Quick's save making a controlled play on the pick, then they made the right call and it's a good goal.
Lewis' waved off goal....that was just straight up BS.