So that’s how much all the tracking and other data (biometrics? 3D model of your home?) is worth to them.

No, that's now much they think businesses or other professional consumers will pay.

Worth quite a bit to get metrics like heartbeat, what type of stuff you get physically excited about. No wonder they want to connect it to a real user account. Speaking of which, I'll create a fake FB account now and start nurturing it in the case I wanna buy an Oculus later.

But, if that article is correct, (“When you buy a headset like Oculus Quest, it is meant for consumer usage, and theoretically speaking, you can’t use for commercial purposes (exhibitions, training applications, VR cinemas, etc…). Yes, I know, we all use it for commercial purposes as well and for sure Oculus won’t enforce the licensing in the short term, but if you want to play exactly by the rules, you should buy a Business Quest for every enterprise application.”), you can use it commercially! That’s a steal!

What’s next? Ballpoints for business use, at double the price of ballpoints for personal use?

On top of the high price, you don't get the Oculus Store either. I think you can theoretically sideload the consumer apps, but it won't be a straightforward process from what I understand.