Because why should they? If I go to your URL, I can see most of the information you're worried about out for public display. Or, if you really are that concerned about it, you have a remedy. Actually, two or three.
And, I'd disagree about them not "giving a rats ass" about what users think. When this initially came up, it was very clearly debated and I, as a user, felt it was put to bed. The identifiable information that you're so concerned with doesn't track you to a computer. It tracks information to a server on the PUBLIC internet. I'm not a lawyer, nor do I play one on the Internet, but I am someone with a business degree that's had to navigate more than one contract and privacy issue for businesses. I think you'd better check your case law because the case that you're very generally referring to sounds like one of several game console cases. They're different and not applicable here. That involved either, Nintendo trying to block third-party cartridges, XBOX modifications, or the EA Spore DRM fiasco where they installed extra software that interfered with the OS to report back. All totally different situations than this.
Back when this originally came up, the debate was so limited that I don't think you can really claim a significant portion of the installed userbase really "gives a rats ass" about the data being collected by WordPress.org.
It's good that people keep track of it and make sure everything is on the up and up, like you were trying to do, but you've come to the party a bit late. This was all hashed out two years ago when it first came up. If you'd been around then, you might have been able to participate in that debate in an effective way.
Keep fighting the good fight, though.