https://github.com/projectdiscovery/nuclei-templates/blob/85577670d2f4a8e6037752c87ca113803d6a2213/http/misconfiguration/ingress-nginx-valid-admission.yaml#L55C5-L55C14
Should this match include an 'and' for status code 200? I don't have an environment to check the correct HTTP response.
Observed false detection in PHP environments with 405 Method Not Allowed with verbose debugging enabled that will return true for all 3 matchers.