The NHLPA has finally wised up with their management change. Salary cap/floor numbers really mean nothing. The players will get their money regardless of what the league sets up as limits.
Salary Cap floor isn't meant to get players more money as they'll always just get 50% of revenue. It was built so that teams remain somewhat competitive and don't just look to make money by lowering their payroll the way some teams in MLB do.
This was a very reasonable solution to an unfortunate (and thankfully rare) situation where Columbus is not forced into making a deal just to hit the cap floor following Gaudreau's death.