The main design goal for the final /8 policy was to make sure that newcomers still had the possibility of participating on the IPv4 internet. It is unfortunately still not possible to run an ISP, hoster etc. with only IPv6. Without the final /8 policy every new company would have to get (borrow, buy, rent, ...) IPv4 addresses from existing companies that already got IPv4 addresses before we ran out of addresses to distribute using our needs-based allocation policies. With the final /8 policy they don't get much but at least they are able to participate on the internet. There is still an imbalance because of the low amount of addresses they get but at least they have *something* to work with.
try to minimize barrier to entry. i am sure there are nice terms in law for intentionally doing the opposite. randy