One could argue that if it’s not in your swim lane, you just let it fail. And if you aren’t that person’s manager, you tell them the code or design that you are reviewing and thus the gatekeeper is not adequate. Politely. You said your part and no need to get yourself in trouble. Document and move on. If the company won’t listen then you move on. No need to turn it into a HR issue.

Complaining is always an option. The problem is that HR actually takes the complaint seriously.

Just because something isn't an HR violation doesn't mean it's not wrong, rude, or unprofessional. Society is not a computer program. Being tactful is important to well adjusted people.