The US networks want games on alternating nights.
If Vegas wins tonight, and they fly to Colorado to play the Avs, their building is not available on Wednesday night. Which means they would start on Tuesday, and the Oilers/Canucks series would start on Wednesday.
This would screw us out of our Saturday night game!
Additionally, if Dallas wins tonight, then Colorado will fly there to play them. Because of the NBA Mavs, they are also some complications with the arena in Dallas.
I see our series getting the shitty end of the stick!