If you read the article, you would notice that it is reaction to changes in the app store terms, changes which entail "we can reject your app for any reason whatsoever".
You know, I thought maybe you were right, and I somehow misinterpreted, but no:
"But those creative few that want to do something interesting with a UI, or want to use hardware in a new way, or who want to use a more advanced code execution technique are at grave risk."
It seems the authors driving point is the specific clauses regarding hardware, interpreted code, and the conformance to the Apple design guidelines are somehow inhibiting killer apps. This is on its face absurd. Sure, it may inhibit some types of killer apps (like Google Voice), but the stark majority of potential killer apps for mobile certainly can exist within the current guidelines.
