The more I think about this, it could be a blessing in disguise. By basically being in limbo tonight, where all they could do is relax, hang with their teammates, and watch film, they cut out any time these players had to worry about the game.
By the time they get in tonight, they will be able to just go home, get a good nights sleep, and then go straight into gameday.
The C's were not focused at the beginning of games 4 and 5, but I expect this delay to go a long way to make sure that doesnt happen in game 6.