I picked up DRG as a main this tier and these are the only things that bug me about it:

-Mirage Dive is basically a filler ability. Might as well have it baked in High Jump. I don't get the reason to have it as its own ability.

-Having 2 Spineshatter Dives makes our bursts feel clunky with how often our jumps immobilize us (High Jump, 2x Spineshatter Dive, Dragonfire Dive, Stardiver). Get rid of Spineshatter dive and replace it with some other ability. We already have Elusive Jump for a movement option anyway.

Aside from these two points, DRG feels great to play to me.