There's also the whole thing that they want these things to start off as being fc only but what they will end up being is anyone who wants a house will just make a fc for themselves(and peoples random alts) and just leave their fc and make a linkshell with people from their fc they cared about. Unless these things require a large amount of players in a guild to make then there's nothing stopping rich players from completely forgoing the "limited" housing and just having their own personal mansion. They want something that will break up fcs then this will be it when anyone with the gil to buy one will just break off from the main guild and create their own.