Things like that are going to be permanent beta because it's always going to be evolving. Like right now it uses the ultrasonic sensors, and then in some future version it will use the cameras as well.
It doesn't really matter if someone uses the beta tag. The fact is that it's essentially SW as a service model similar to Windows 10. Where there will be constant updates to fix things, add features, and likely break things.
It doesn't hold much meaning to me whether the beta tag is there or not.
I know it's a feature that requires supervision, and that with the senor set it has it will always require supervision. So I make sure I'm always there at the ready in case it screws up.