What we do see Apple doing is consolidating some aspects of iOS and macOS development. That makes sense since iOS was originally built on the OS X kernel, but then allowed to diverge.
A reasonable solution would be to make it sufficiently "technical" to unlock the device, so people can't be easily tricked into it.
but
> most things would not work
It should go without saying that the whole point of installing an app is that it work. It does me little good to have the binary sitting in the file system if it doesn't actually perform the function which it was built to perform.
Developer certs != jailbreak. Apple could provide a jailbreak option, but it chooses not to, so people who want to actually control their own devices (a not unreasonable thing for someone to want IMHO) have to deal with Chinese hackers.