The "EyeSight" feature has weird implications for how Apple thinks this thing should be used. I'm not really sure I love the idea of making it "easier" for someone to leave the goggles on while interacting with me.
By comparison I suddenly find something like the Valve Index and the emphasis on gaming, much more benign.
I think the big thing here is being able to go up and talk to someone real quick. If Im working and someone just wants to talk for 10 seconds, its much easier to just look over at them instead of slipping the whole headset off.
I'm thinking about an interaction kind of like the scene in Minority Report where one character is controlling the displays while the other is giving information and interacting with them, but it's not always a face-to-face interaction (https://youtu.be/7SFeCgoep1c). In that sort of situation, this kind of feature seems useful.
I agree that it will always be weird to just keep the headset on during an entire conversation or to just walk around with them all the time. But if someone is doing work or watching a movie or something with these on, and just needs to turn their head to talk to you for a minute, it's a nice feature to have.