from Sportsnet,

“I don’t know, it’s tough, I mean 3-on-3 is exhausting. We play six forwards and three D for the most part. Guys are usually dead tired, and goalies are dead tired by the end of the five minutes, so, I think extending it would be a little bit tough.” – Vegas’ Mark Stone

“You see how much the fans love it, and I think we love it almost just as much. It’s fun. If you went past the five minutes, it wouldn’t take long until there’s a goal because there are so many chances that happen. Once you get to a shootout, it’s kind of like a 50/50. How many two-on-ones are there in five minutes? I think in another five minutes, someone will score.” – Vancouver’s Brock Boeser

many more responses...