Your debate aside, the salary floor is still an excellent anti-tanking measure IMO. In fact you're the first person that I've seen that doesn't seem to think this is the case.
But they're never going to be able implement a change that has an 100% approval rating. That's obviously not realistic. But that doesn't mean that doing nothing is the proper step either. But making a change that looks like a step in the proper direction by a huge majority is still a positive move.