the problem is that the FA and premierleague don't have any rules re finances. Also, uefa is a business. So fines are good for them. Having some if the worlds players not participate is not good for tv figures and revenue.£50m, what does that mean to them? If the owners are bothered then it just means that they will only spend £100m in the summer rather than the £150m they probably would. CL ban is what would hurt them, 1 season ban would do it, as that would probably cost them £50m too in lost revenue. Next time they get a 3 year ban and so on.
All the fine has done is let a club with a bottomless pit get away with breaking the rules.
I personally think the rule is a joke, why shouldn't a business be able to spend money they have? If it all goes wrong I would pity the fans either. They'll of had 10 good years so have to take rough with the smoove.