Does not Wound?

I have 100%~100% Injury Rate, but when I've trained Urgent on Mongooses and White Spiders, they've gotten to deadly with a full faded red health bar. This isn't just me is it? This flawed archer skill can't wound at all, despite archers being known for wounding back in the old stages of the game?

Correct, it has 0 wound, but that's not really an issue, since it was meant to be an emergency skill.

Why should an emergency skill stop it from being able to wound? I know Counter series don't, but Bullet Slide is capable.

Even though wounding is mostly irrelevant mid to endgame, I still think its an important detail to mention.

I mean, yeah it's a detail to be had and I can add it in, but it's really a minor detail, not an "important" one, because as you said, it's irrelevant, at any stage of the game to be precise.