DRG is interesting because they can equip enough store TP with /SAM to make a 3-Hit Build. WS > Auto Attack > Jump > High Jump > WS. Any additional attacks in there and you do it with fewer jumps.

Use Spirit or Soul Jump, same thing but faster.

Use a Ryunohige's Aftermath, WS all day.

People just need to start gearing them and building better macro sets. I agree Mythic or GTFO is really steep, but that's the reality of it because Piercing is usually a liability instead of a boon.