Sports have the kind of cultural power that you'd ordinarily only see from an organized, centralized, and probably Abrahamic religion. As a result they're able to commandeer the state in ways you'd only expect from an actual political party or an invading military force.

For example, it's common for sports teams in the US to browbeat cities into building them new sports-related infrastructure. Because they can threaten to move to LA, and then the public comment forms all get flooded with angry people who have no political opinion besides "WHY ARE YOU TAKING AWAY MY $SPORTSBALL_TEAM". This is papered over with a lot of excuses about "stadiums generating business revenue" (they don't lol) and people don't look too closely because nobody expects the sports people to be eating off the public dole like this.

The thing is, politicians also like sports because it's something that keeps people looking away from what they're doing. That's how sports leagues got to demand expensive stadiums in the first place. And every organization grows to fit its niche, because no one wants to take a paycut. So once sports leagues got used to having billionaire teams buying top talent to play in lavish taxpayer-funded stadiums, this sort of insane copyright nonsense becomes inevitable. LaLiga's business structure is too top-heavy to tolerate any amount of piracy. Anyone who isn't paying their tithe to the church of sportsball demands investigation, and anyone who obstructs such investigation is a threat to the sport.

Exactly: Telefonica is not only the rights holder, it is an ISP… Which seems a conflict of interests but you know, Spain is different!