Dead in the water if it's iOS only
There are other products and WILL be other products that can and will do the same that will work with any phone, Android and iOS
What would be the point in a control system for the home that will only work whilst you buy iPhones?
And for the countries around the world which have a tiny iOS market share, virtually no sales at all.
Apple can't be THAT stupid can they ?
That would be like trying to sell an Apple TV that you had to use an iPhone for a remote control and nothing else would work. It would be even more limited than it is now.
You might want to actually read the articles you comment on. Crazy thought, I know.