Except when they call it a hobby, (ATV I’m looking at you), or a beta, (What’s that you say Siri?), when it suits them. They can then blag that there are reasons for a less polished performance right?
They should have called Siri an Alpha. That’s A for amateur.
It could also be that they are likely producing it in low volumes and understand the obvious consumer interest in this new phone.
Apparently it's the tactic they use to offset their thin profit margins. Availability of previous newly released Mi phones was a joke in China. In 6 months when the components are cheaper they can then ramp up production.