I think CAPP is definitely is an ill fitting for typical home users desktop or laptop applications. Is it for corporate? I don't know.
I feel this is the sort of thing that needs to be done modularly.
LSB compliance is provided modularly, we don't require default desktop installation to be LSB compliant. But a Fedora install can be made compliant via the installation of a package.
The interesting question isn't whether CAPP is valuable or not. The value of CAPP compliance, just like LSB compliance is not an intrinsic quality. The value of these things are situational, and are based on the policy needs you find yourself working in. Either it will matter to you or it will not.
The interesting question is, if its valuable to some subset of users and contributors, can it be implemented in a modular way. If Fedora CAPP compliance, even option compliance, helps get a linux development system into the door by lowering the red tape for a sysadmin...it has enough value to be worthwhile to be a Fedora 'feature'. It's just a question of how to implement that compliance so that it can co-exist with other Fedora usage scenarios.