The point is not about whether video games should be exempt, it's about being able to tell whether they are covered by this law or not

The OP article didn't link to the law text and the above poster didn't hint at what's ambiguous, so it's not clear that that's bad. It's also possible that the game companies are doing something wrong and engaging in wishful thinking/trying to find a technicality through which they can argue the law doesn't apply to them. c.f. premium loot boxes i.e. gambling.