Yeah, but that’s a less clear argument to make than “everything Bluetooth should always be interoperable”. Since Bluetooth isn’t universally interoperable (e.g. depending on the supported Bluetooth profiles), it’s not a priori clear that “doesn’t work with PC audio” may not be a reasonable technical restriction. Of course we know it isn’t in this case, but it’s not as simple as “it says ‘Bluetooth’ so it should work”.