Siphoning Strike bug when it consumes shock

With normal version of siphoning strike, the strike can be performed continuously with only the limitation of attack speed.
But for the special version where it consumes the shock on shocked enemy and releases a shock wave, the character always jumps back after consumes the shock.
This makes the special version has a very big delay to the next strike comparing to the normal version.
We can easily see the jumping back animation right in the introduction video
https://cdn.poe2db.tw/image/Art/Videos/SkillTutorials/SiphoningStrike.mp4
Because of this delay, the special version is in fact has lower DPS than the normal version, but normal version will have high attack rate.

So this jumping back animation is bugged to me, it's either of these 2 bugs
- The special version doesn't suppose to have this animation
- Or the normal version suppose to have this animation too
But it doesn't seem to be correct to me for the latter to be the bug. Because none of the gap-close-strike (shattering palm, staggering palm, hand of chayula) doesn't have this animation at all

It must be that this animation is redundant and should be removed.