Why doesn't the gore spike ability in the blood mage ascend of the witch class in poe2 work?

While I was trying to make a build that tried to accumulate critical damage by increasing the amount of health, I realized that the life points I accumulated did not cause critical damage. I noticed that my critical damage can be increased from unique items or skills within the skill tree. I request you to do what is necessary.

https://www.pathofexile.com/forum/view-thread/3635409/filter-account-type/staff

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I do want to clarify that this is a visual only issue. The increases to Critical Damage are not displayed in the skill gem menu, but the ascendancy node does result in higher critical damage when used.