I personally think these changes do very little to address the root of the problem, which is
the drop rate is awful
No one does voidwatch/wants to do voidwatch unless they are upgrading an empy
void dust is a pain to obtain (buying 1 at a time AND requiring awful conversion rates)
void stones are too limited compared to other items/end game events of yore (you can salvage 1x per hour/dynamis 1x per hour...but you dont get a new void stone 1x per hour)