If there's a travel ban and no public transportation, there is literally no way for people to attend, unless you live within a mile or so from the Garden. And that's assuming you're in physical condition that would allow you to walk through the snow that far. I can see why people would be pissed if the game is on and they can't get there.
If the travel ban is lifted and people have the option to attend, then they at least have the ability to make their own decision about whether or not to go. If I lived within walking distance, I'd love to be there, but I'm not walking 5+ miles in this crap.