If crit was an additional multiplier after weaknesses then I could see it being really strong but until then it's a rare nice to see but skills do more number.
A future combat rebalance is supposed to do just that, make Crit stack with Weakness procs.
As for if said rebalance will come in a timely manner, we'll see~
Flower Knight Girl ID: 716597775 Level 155. Total Power ~546000