You're right and I'm torn on whether it's good or bad. In a way that would be at least sensible, but awful for me. The other option is they're making lazy bad choices.

I do wonder what would have happened if the laws were in place first. Would people have been so willing to add all this stuff if it meant putting a big thing over the entire shop?

My other consideration is whether if the owners had to use their site like new customers every time if they'd get pissed off about the stuff covering their actual shops.

Given people A/B test all kinds of minor things I'm sure someone would have hit on it and then it would spread. That's basically the rocket fuel that drives people really into A/B testing everything rather than just hunches "I could find something which increases metrics you wouldn't otherwise think to try".

In either case, I think the net result is bad news for users, good news for people selling things. And of course the sprinkle of "people just making mistakes/guesses" too, but there's no universe that's not going to be found.