I'd like to see a method of hooking some hijack functionality into the player menus, although I'd agree that there is a lot of hijack that it would make no sense to do so.
I'd suggest that if we implemented suitable ioctls for such functionality (eg Bass/Treble) then the empeg guys would be inclined to use them, leaving the underlying implementation within the kernel. Obviously this would mandate a hijack kernel to be included in the .upgrade packages, but this is something that I think should happen anyway.