I do not think that is a bad idea, having worked with the Apple restrictions for years.
Side loading during development or small scale deployment will still be possible.
This is not about commerce, but about integrity.
Yes, some freedoms are taken away, but to the good of the platform.
Anything else is moaning.
There is no commercial interest in these new restrictions.
Anyone who thinks so is distributing false news, oh well, to quote the Donald: fake news (in this case, though, it is really fake) and probably do not understand the context anyway.(Like the Donald)
Plz???
The changes are for the good of the end-user.