Eh, that's fair.

I think it's awesome that Steven and Connie were taught by all the Crystal Gems:

Pearl: Taught Connie to sword fight as well as teach Steven to always be by Connie's side in battle (Albeit indirectly).

Amethyst: Taught the two to be more relaxed during battle and to think more spontaneously in a fight, lessons so good, it beat Jasper.

Garnet: Taught the two self harmonisation and the ins and outs of fusion so Stevonnie would be more controlled.

Now we just need Peridot teaching about tongue lashing and Lapis on how to ONE-PUUUUUUUUUUNCH!!!!