a. Arguments Supporting the Proposal
There have been already very clear examples and discussions in the region about the need for this modification.
The inability to obtain IPv6 address space by some big entities which require it is a clear barrier to the deployment of IPv6.
By adopting this policy, we avoid creating an unfair situation among different regions, many of which have already modified the original IPv6 common policy to avoid these barriers, based on experience which was not available initially.
Possibly we could even say that requiring an arbitrary number of sites in order to qualify for an allocation might be considered against law in many countries. We must understand that the community can't set policies that might easily be considered illegal by courts, as this could have severe implications.
b. Arguments Opposing the Proposal
The possible effect of this proposal is a growth of global routing tables, as naturally can be expected, because new allocations will be possible according to the suggested modifications.
However, this is the right thing to do and the right thing to happen.
Moreover, the actual opposition arguments should be against being unfair to smaller ISPs, which could not justify a fixed number of assignments, which is quite irrational and could be compared to a similar requirement for allocating IPv4 space, which would never be accepted by the community.
Acknowledgments:
I would like to acknowledge all those who have contributed during many years, to the discussion of the modifications to the existing policy suggested by this proposal.