1. FC's actually need them for full functionality. Relocation removes no houses from the empty pool and the problem is people don't have them, not they don't have a large one. I'll concede that the resellers do get a one up as it stands, my hope is there is a hidden restriction. If I'm wrong this will need to be addressed and I will stand and yell as loud as the next person that this isn't the solution.
2. Yes. Wait for an undetermined amount of time.
3. we do not know that ALL housing is restricted and it wasn't clarified unfortunately, just speculated that ALL housing would have this restriction. Nobody has shown me that existing wards would have this restriction. This may burn down to a different interpretation style on each side. I don't consider something a given unless explicitly stated.
I don't see this as unfair. Personal housing is nice (all crossbreeding gardening results can be purchased from other players) , but FC housing is necessary (nobody wants to join a FC without a house) . FC's need their fair crack at housing.
I'm personally waiting for the "more details" before I pass anymore judgements as I've said.