He's right though. Not all the wards are completely full on every server. There's still plots left on Moogle and it has a moderately high population. I expect not all the wards are full on servers with similar or smaller population. This has honestly been the most successful housing patch to date.
Balmung's situation sucks but this happened because of the players. SE didn't designate it as the official rp server, the community did that. Any player there who has housing as a very high priority should leave as they may never get a house otherwise. With cross server friends now possible, it's not difficult to keep in touch with friends from other servers.
