Earlier quoted context omitted.
What you have described is _exactly_ how regulation works. It's still a hundred times better than what most countries in the world produce, since it's designed around the average human and not a megaco.
This isn't about how it works, it's about whether it works or not. That companies need to follow the law isn't exactly confusing, and nobody is saying they shouldn't, but when the law cant even clearly answer basic questions of who it applies to and when, that's a problem. There are examples of regulation that does work, but GDPR is not really in that category.
I haven't seen many grey areas or difficult corner cases in the discussions here, so far.
Only people claiming that everything is unclear, because they don't want to accept the truth: that they clearly fall under the GDPR.