Maybe it's just me but the idea that my computer lets Apple (+ any LE organizations) surveil my app launches seems so much scarier than any malware.
I don't know about you, but hashes of the binaries I run don't exactly reveal any sensitive personal information about me. That said, obviously they should have much more graceful degradation in place for when something is wrong with the service.
In this case, isn't the hash of the binary consistent across all devices, so Apples can in fact derive exactly which binary you're running (assuming they have a large database of application binary and hashes)?