The more and more I think about it, the more and more I think this is a brilliant move by the NHL.
Vegas isn't the same as Florida...just because its hot doesn't mean hockey won't work there. It works in Dallas, it works in Tampa. The heat means nothing.
They've already sold, what, 13,000 season tickets? They have had minor league hockey teams there that have had great attendance. People from other markets will travel there to catch their team playing in Vegas. You take in the sights and the glamour and watch some hockey as well.
And lastly...tourists. Sure, there's a lot to do there but this is an added attraction in a city full of them. The casinos in the area will give out tickets to "high rollers" to help fill the arena.
I dunno...I struggle to see a downside here. It's hot doesn't count as a reason anymore IMO. No fanbase there...I guess that is something? Maybe?