That's a good question. I'm quite neutral about it. I'm curious about what a small decrease in the rock tolerance i the body would do. But we'd have to ask the top guys if they think it would be likely to make the body shots OP.
You have provided data. That's not necessarily evidence.
If you're asking for a buff, the first think you must consider is if it would make the thing OP. If people are already throwing a healthy amount of these kicks, would a buff create an excessive preference for these techniques?
Data is generally good, but counting how many kicks for a KND in practice mode doesn't really help a lot in answering that question.