Don't play MMOs, especially ones by SE because they're not going to release 720 areas at launch, they'll release 20 areas at launch, then 20 in first expansion then 20 in second and so on with 4 new areas in between in patches based on content addition.
Well aware of that, I've played XI since 04, and have knowledge of which zones were in the original FFXI and which were added in Zilart and the rest, however 5 really is a low number especially as you've said were so lazily put together.