>>1771415
You sure? Looks like it's being counted here.
Even then, people still ignore the proc because getting it to activate is a hassle. You need to burn 15 cubes in 15 seconds within using your 3A so you need to make sure those skills are also off cooldown whenever you use it. However it's within 15 seconds of casting it, you're locked into its animation for a few seconds so realistically it's more like 10 seconds. The fact that it's max 5 cubes per skill count also hurts, if it was unlimited then fbrawler could hit 15 by using her 95 her 80 and her 75 but the 95 is 7 cubes so it wouldn't count the full amount and you'd need a 4th skill.
A big problem the set already has is that the whole game is balanced around everyone bursting along with the sader's awakenings, your awakenings not being synched up to everyone else's is a pretty big deal. You want to use them as often as possible because that's where your damage comes from, but if you use them like that then you're out of position for the big DPS phase and end up losing damage anyway.