They add crafted glam weapons during patch content, the last of which was 6.5 for emerald as you noted. So they haven't actually missed anything as yet.
3.3: Striking Tree & Limitless Blue.
3.4: of the Round & Hive
4.1: Fiend
4.4: Nidhogg
4.5: Sophia
5.2: Shinryu
5.3: Suzaku, Tsukuyomi & Seiryu
5.4: Zurvan
5.5: Byakko & Hades
6.1: Susano
6.2: Fae
6.3: Ruby
6.5: Emerald
7.1: ???