This is something I noticed the past week. Haven't played her in awhile but I noticed that when completing the last stack of denting blows with excessive force, it doesn't deal the full dmg of excessive force, it just deals the base dmg of 10, without taking into account the ad ratio. I only tested it with the completing that denting blows stacks. Not sure if it does it on all of them but I am 100% sure it deals the base dmg of excessive force when completing the denting blows stacks.
Which means she is dealing a TON less dmg than she should be doing.