As I recall Kalico's original comment was posted before Longarm's video. Either way, his video was 1 minute long and not even close to a fraction of a suitable sample size.
It should also be noted that while sacrificing base damage, this can attack twice and eventually become a Khanda and attack 2-3 times, through trials 161, 162, 163 (OA2 result).
on my wife's character but anyways need to get 10 Ruthven's Nails ex drop from Lord Ruthven new Vampire nm to get the 160 dmg+17 Delay+36. There's an easier path 163 that gives same but no +dmg which kinda sucks