I understand what you are saying. What I’m saying is that really CFI is what is vanishing, and you’re changing the name of CFII to CFI.But, IF the -II or CFII training, whatever, was "absorbed" into CFI training then all CFIs would be permitted to teach instrument students, and the -II, or CFII, would vanish.
You aren’t taking away CFII because if you did, there would be no one to teach IR. You’re taking away CFI - there will be no one that can not teach IR.