The worst thing to happen to home automation was companies trying to lock customers into their ecosystem without greater interoperability.
It's understandable, but it fails to be an excuse for the behavior.
That is, it's easier (and quicker and simpler) just to say no than do things case by case. It also mitigates any possible future fiction.
I'm not saying it's right. But knowing how these Big Incs operate it makes sense.