This is a completely different position than saying that it expects games to be forced to be updated forever, so I'm not sure why you said that unless you heard someone else summarizing it incorrectly, like Thor, and didn't verify it yourself.

First off, this is not a piece of legislation. They're not allowed to do that. They're petitioning for legislation and stating the problem. More specificity is for parliament to decide.

Second, legislation like this is basically never retroactive. If it does apply to games that have already been made, there would be a grace period for actively supported games. There always is.

Third, Ubisoft sure seems to find it to be worth the effort for The Crew games they haven't killed yet, as they're staring down the barrel of this potential legislation. And if you're building a game with this requirement in mind from the beginning, it's substantially less work. This used to be how more or less all online games worked, until they found out that a dependence on their servers was potentially more lucrative.