Random Thought no.2 - IMO these briefings/leaks are happening for one of three reasons:
1,.These are what is proposed and individuals are trying to stop it - if so Cummings will be after them.
2. These are "worst possible case scenarios" and someone thinks like the Nott review they will turn out to be the proposals.
3. They are being released to make the actual proposals generate a sense of relief - my personal belief (or perhaps I am just indulging in wishful thinking).