Is it? When the political agenda is "no infinite scrolling" it seems they can just ban infinite scrolling, and that doesn't cost any money.

You'd think so, but paying all the people who sit around and think of things to regulate, the people who actually write the regulations, the people who enact the regulations, and the people who enforce the regulations is not a trivial cost, especially at the scale that the EU wants to regulate things.

Also, the actual political agenda is based around a welfare state, which absolutely costs money to maintain.

I like infinite scrolling. Probably most users like it. My country's government banning apps from letting me infinite scroll in them sounds very paternalistic and silly.

I make apps for myself above all else. I always add infinite scrolling support to all my apps. It's just a better and smoother experience than pagination.