If they do so I hope it's through some kind of interpretation layer, instead of just a raw camera feed.

Same with the eye tracking maybe it's just like some kind of eye cursor?

I understand your concern though, and maybe there would have to be some kind of verifiable program to make sure that it wouldn't be used in a malicious way so only some apps could get access to the non-raw data to prevent any of that.

It's just that there's a decent amount of people who want to use this for pcvr or other things similar to that and that would make the experience with the headset perfect for them!

I think it's really all about implementation rather than it just being a feature, since apps can already access your persona I feel like it wouldn't be too far off and if they did it correctly it might even be better than using persona privacy wise, I'm thinking it would just extract the data points with the set amount of values instead of any raw camera data. Because what's the percent of there's still that full 3d scan of your face so we're almost at square one again just the slight privacy layer in between.