Materia likely won't have the same problems with housing supply that other data centres have, so I don't think the lottery serves much of a purpose here.
At best, it should just be an option for those people who might prefer it, even though I think majority FCFS makes more sense for a new DC like ours.
Making all plots lottery-based just delays opening up an entire section of the game that is currently closed off to OCE players.
Other than it taking longer to be able to play a large part of the game, this delays starting up our already slow economy where an entire category of items is unsellable. It delays our ability to build a new community. There is no supply for certain glamour items that come from submarines and airships too.
As a personal side note, crafting without housing merchants is unpleasant and I can't wait to get out of Limsa.