Chonk mechanics question (Monk of Chayula)

Hello,
I want to make a Chonk build and am aware of most of the bugs and how bad it is atm - that is fine, bugs will be sorted out.
I have two mechanic-related questions though:

1. Does Flicker Strike witn charges benefit from Mantra of Destruction on all of it's hits? In other words - are Flicker Strike's multi attacks considered one ability? Or only the 1st hit will get the bonuses? (I assume Sniper's Mark will work the same way as Mantra here)

2. Does Hexblast detonate multiple Curses from one target? Hand of Chonk can apply more than 1 curse to the same target, so it is not a standard scenario of one curse per target. Will Hexblast detonate all of it or just one per target?