They are only blocking it because the French gambling mafia/authority is not getting their cut. They do not care in any way at all about a "predatory" gambling website.
They just want their share.
I responded to the wrong comment, I ment to respond to the GP.
Since Fifa is Swiss, it has nothing to do with this court ruling. So indeed, why bring it up?
FanDuel cannot operate in France but their website isn't blocked. So how do we explain this?
France, EU, Italy, Spain, La Liga are just consistently making fools out of themselves trying to block everything on the internet when they don't like it.
Maybe it's just because regulatory censorship is inconsistent and doesn't make any sense. It's like the China firewall but even dumber and less effective.
Note there's no liability on the ISPs, they do not have to pay a fine for not having blocked it, they do not have to ban alternative DNS. In Europe there is apparently a legal mindset that you can recruit a third party to conduct an action that is not onerous to enforce a blockade. A court can point to someone who has a DNS server and order them to block certain lookups.