They fall because the most important part of the game is ignored. If you want to speed up the game, get the ice up to standards. The ice in the league is pathetic. Bill Berg's leg injury is most likely due to bad ice. How can teams expect players to perform on pond quality ice.
Fast ice makes for fast games.
Teams should be responsible for their home ice. If the ice is bad, then a bench minor should be given out to the home team. The fans pay good money to come in to see the game. They shouldn't have to watch it be played on pond quality ice. The League is inspecting possible expansion arenas, but I'll bet they never once looked at the quality of the ice in those arenas.