1. Does FFXIV need more wards than it currently does? Absolutely!
2. I know on Adamantoise which is the server I was on before I moved to Gilgamesh, one player owns quite a few houses there in Goblet, which I think is ludicrous.
3. Will adding more wards solve the housing situation in FFXIV, no probably not, but it'll help somewhat for a small while.