tarheelhockey
Offside Review Specialist
Because the GM in Nashville (with some others) said it killed the flow of the game and fans would leave while it was getting the dry scrape.
It did indeed kill the flow. Regulation would end and OT would begin and end quickly, everything would be moving right along toward a climax, and then suddenly you have this awkward wait where all the players stand around and watch the Zambonis. The clean ice didn't make enough of a difference to justify breaking up an intense finish.