Then let owners control whether it's enabled or not (by a hardware switch if necessary). As it currently stands, I can't imagine a benign reason that would drive intel and AMD to lock users out of their machines.
1. Or the government or one of it's contractors. I've even sat through meetings 12 engineers sat around and argued about what to name something internal. I started calling this "name by committee".
And even if there is, the "non-evil" reason for keeping this as is might be that "enterprise customer doesn't want something that is easily disabled, and we can't justify cost of a separate design / fab run for a small minority of customers", vs. "Haha, now we have a backdoor into EVERYTHING!"
(Hell, even the proposals about disable via hardware switch, or having the ME on a separate component probably boil down to money. To an outsider, hardware companies are funny beasts in that they really start caring about things like counting pennies and minimizing BOM cost as much as possible. I've been in worried meetings where we were literally counting and debating pennies, and wondering how I got there, but it makes sense at a company level since those pennies add up when you are building thousands or millions of something! This may have boiled down to "motherboard manufacturer doesn't want to have to put another mechanical part on the board, and they are looking to buy a shitload of our parts, let's keep them happy")
Please note: I'm not saying, or even advocating, that this is a good thing, or results in ideal outcomes when I say "benign". I'm just using it in the sense that this likely wasn't a malicious decision, but probably one motivated by money at some point, by people who didn't necessarily see the harm in it.