I know that they are the replica from the PvP stuff, but SE has done a lot of replica to be available for all jobs (Coliseum and Light Steel/Taffeta) or Anemos Pagos stuff. The GARO gear from GS is meant to be glam piece (lvl. 1, no stats) and again, for it's price I think it should be available for all jobs.

Also, totally agree with you that they should allow you to glam anything into everything (except weapons) because I know a lot of people that really want to glam their WHM with heavy armors or glam their Tanks with robes.