I think most users would see open connectivity protocols as a feature, and being unable to connect whatever lighting fixture they wanted to the Hue hub as a det

I think most users would see open connectivity protocols as a feature, and being unable to connect whatever lighting fixture they wanted to the Hue hub as a deterioration of their "consumer experience". Connect some dodgy 3rd party lamp that is non-compliant, or worse, infects your system w/ malware and breaks your products? That's a bad consumer experience you've brought upon yourself, knowing full-well the risks. If anything, it'll make you an ever more loyal Philips Hue customer once you shell out another $200 for another starter pack and never touch the untested 3rd party stuff again. I'd be very surprised if this was anything other than the classic case of - build a very nice garden, then wall it off, or else go broke.