If xivarmory was done as well as wowprogress i would have linked it.
Regarding the listings in this thread itself, this is just how progression threads have been run for the majority of all MMOs etc. You can check other server's threads. Progression threads are not meant to be a 'visitor's guide to all guilds on the server'. Most of the non-JP progressed raiding FCs on the server are listed. I'm also not sure about listing JP guilds. If they posted here i would list them, but i'm not sure if they even read this subforum, or if they would even care to be listed on an English progression thread. One of the main uses of a progression thread for outsiders is for those looking to transfer to this server and are looking for a guild/FC to join. Listing the JP FCs isn't terribly helpful to those people, so i believe the thread is sufficient in its functionality.