This is used to prevent devices that don’t know about those features from accidentally triggering them as they are not per spec (spec lacks way to do many things AirPods do).

And AirPods do connect to non Apple devices. They are just limited to doing what BT spec allows and no more

Please stop spreading FUD

Multipoint connectivity is part of the spec but apparently AirPods only support it if you pretend to be an Apple device.