We keep learning gem stuff we didn't know, including stuff the crystal gems didnt know like cluster, dream fusion realms, 5000 years later gem tech, etc.
Again, gems can make cool shit outside themselves/thier gem, Expert Swordmanship Holo Pearls,Lapis Mimicking Water Clones, Rose moving blooming vines and flowing healing fountain
Fact Lion is connected to Rose. What is that connection/Lion origin? I really hope it's more than she found a magical lion with her color scheme (which would make him the only supernatural being outside gems)