It’s annoying to have on any device. It’s bad enough I have to sift through a dozen popups to get to the actual page that matters on iPhone, but literally no important service out there has a “log me out if I open this more than once on another device.” function.
Imagine the irritation of dealing with all of your social media accounts and email across multiple devices and having to deal with this. Now imagine you have to deal with it typing in on an app that (yay! Great idea!) doesn’t save your PW and you have to type using a VR handset.
The only reason for this level of security is for people who want it to opt IN to - not to make it mandatory. I’m not worried about someone stealing my headset and watching my porn.