One of the problems with PF that could be fixed is that it isn't cross server. You have a much smaller group of people to pull from when it is just your server. Blizzard made a party finder feature in WoW that is cross server in the newest expansion. I think they actually got the party finder idea from FFXIV but improved on it made it cross server. When making practice groups which fewer people need its very hard when confined to 1 server.
I don't see why SE couldn't do the same thing. It would be much cooler if I could play with anyone that plays FFXIV then just the small amount of of people on my server. You could post on the forums for help and then get help from anyone pretty much.