I can't speak for the authors but I can describe what we "have in stock" and what the ratified policies allows us to do. The only IPv4 address blocks we have with an UNALLOCATED status are whole /8s. Further, the current policy we implement only allows us to allocate /8s:
" * The IANA will allocate IPv4 address space to the RIRs in /8 units."
-- http://www.icann.org/en/general/allocation-IPv4-rirs.html
Yes, I saw that, but so far I've been interpreting a /8 unit as address
space amounting to a /8, not a whole contiguous piece. Hmm, a unit is
not lots of little pieces, is it. :-( Perhaps it should have said
contiguous rather than unit. Oh well.
Nothing to do with the policy proposal, but what happens to the small
pieces you have left?
Do you/we need a policy proposal to allow IANA to allocate smaller
pieces to the RIRs?
That's for the SIG to reach a consensus on (or not).