At least with Huawei, the backdooring is silent.

Depends, does the android user in the example use all of them at once? Then yes. If not it's an unhealthy relationship. Still better than the abusive marriage that is the apple ecosystem.

I don't know what they do today, they probably fixed it. But a company that actively hides any other devices from bluetooth pairing but their own is ridiculously user hostile. I don't understand how they get away with it, some even argue it's a feature.