I don't think putting financial restrictions on the football clubs "to bring order" is wrong. in US, NFL salary cap rules have been implemented for years, and that is part of the reason NFL is the most commercially successful sports league in the world. Similar rules, although less strict has been in effect for NBA as well. Yet pretty much everybody in US, especially NFL owners, are big proponents of free market and "let market correct itself" doctrine.
If there is no regulation with regard to spending, football leagues will lose their competitiveness and popularity. That's partly what happened with MLB in US, which has dropped it in terms of popularity to NFL.
Now, I agree that FFP rules, as is, are ridiculous, and probably won't work. But they are a first step to solve a major problem.