They'll have to get the missing features into the real release; it's worthless without many of those.
That said, I have a smartphone with about 20 downloaded apps, which is a very modest number by today's standards. Yet every day, one or more of them have an "update" available. New capabilities, added features, security enhancements, bug fixes. I've gotten used to the idea that software needs to be constantly updated.
I suspect Microsoft had two rationales:
I'm sure you're right on this. People won't care if we issue updates on a regular basis, we do that already for everything else.
Nobody but the IT department, and who cares about them. Why can't they just make it work? /sarc
On another note - you seem knowledgeable. Do you think many companies have adopted Windows 10 for the enterprise (my company hasn't)?
That works for 'apps', but not for production software.