Just because you don't think the salary floor isn't effective in your specific league (which is debateable) doesn't mean that the other 99% of the leagues where it is an effective measure against tanking should be ignored. Congrats on putting a cost effective and competitive team together but it still works as it's intended in almost every instance my friend.
Do you think it is normal that theoretically, a team could go bankrupt because of the salary floor?
Picture a team that has such low revenues outside of TV contract that he cannot sustain a decent roster. Now that team should get relegated, but what would happen is that it will get deleted. You don't see a problem there?
"Air is beautiful, yet you cannot see it. It's soft, yet you cannot touch it. Air is a little like my brain." - Jean-Claude Van Damme