It plays a role in kickstarting the community simply by giving people a little more to do. OCE has an entire section of the game locked out at the moment, so I just login to do roulettes and check out. When housing is available, you spend more time fiddling around with your house, jumping around your ward aimlessly and FC chatting (my favourite activity in the game), looking at houses, and you can participate in the RP events (I didn't). There isn't much community if people aren't logged in in the first place, ignoring the obvious benefits that the housing system has in general for building community.
I don't get how having more items that sell isn't going to help the economy? There will be demand for furniture where there is currently none, so players will start to spend gil. Money from players selling furniture will go into buying other items for a healthier economy. Having gil change hands more frequently is how you kickstart an economy. The players that can afford to buy won't be the only ones that will be selling. Where is that even the case when furniture is one of the easiest items to craft? What do the level 30 characters have to do with it? Those players are gone, but there are still real OCE players remaining here which is what all of this applies to and the whole point of this thread.
The housing process is not painfully long for fresh wards. You go up to a house and click the placard once. If you fail, you try again with another one with no delay. There will be 7200 plots opened all at once and many of them will remain open past the first week with our current population. With the lottery, you need to wait for days and get locked out from buying a backup house. Players will have their housing funds locked up there for however long it takes to retry again and again with the lottery. They will delay their spending on furniture simply because of inventory constraints. And for what benefit?
I don't get why other regions are so invested in making our unique situation conform to theirs.