I also believe that colleges should cancel when it is dangerous to walk across campus, or when driving conditions are so severe (we have categories here in Ohio) that businesses are closing and employees would be putting themselves in danger to drive.
I think colleges cancelling classes in consideration of traveling-in students after a break is a lose-lose. Parents complain if classes aren’t cancelled, parents who planned ahead/moved flights/live locally/ would complain if classes ARE cancelled. Hold classes, have professors be understanding for weather related travel absences.