Found this so called "leak" on gamefaqs

[Bourne_Endeavor]

DPS usually have to weave 2 oGCDs. so there's downtime. There's also the fact too MUCH speed kills TP for melee. Unless combat/TP is re-done, a faster GCD isn't happening. DRG already hits 821 right now in full Shire and that's the dead zone...

As a Dragoon main...