The whole concept of Dragoon is the ability to Jump. >_>

Can make your wyvern point valid, but a Dragoon isn't a Dragoon if he can't jump, by Final Fantasy standards.

FFIV: Kain's most powerful move is Jump.
FFV: Dragoon job's main concept was using Jump.
FFVII: Cid leaped into the air with some of his abilities.
FFIX: Freya was a Dragoon and Jump was one of her main forms of damage.
FFX: Kimahri has Jump as one of his abilities.
FFXI: Jump, High Jump, and Super Jump helped Dragoon's get TP in a lot faster, and if used correctly, cause a lot of damage.

If you see the name Dragoon.....expect to jump.