On the droid turbo unless if it is set to enforcing safety net fails. I "think" the reason he has kernel hacks for enforcing and permissive is actually exactly why you're saying to remove it. It's the users responsibility to understand which is needed.
If you choose the right mod and the rom requires selinux a certain way then at least on boot it is placed back.
If you choose the right mod and the rom requires selinux a certain way then at least on boot it is placed back.