Smithscript daggers critical

[Sunbro Gilgamesh]

I guess this weapon is bugged. I tried it for personal tests and found out this when parrying:

smithscript dagger has animation and damage for thrusting around 1400 damage but only animation and no damage for when extracting the blade
other daggers have animation and damage for thrusting weapon (in my case a similar damage) but animation and ALSO damage for when extracting the blade (in this case over 4k damage).

So, it feels like the weapon wasn't programmed correctly to deal the reposte damage. Your opinions about this?