I suspect the attitude in the relevant areas of the UK to your comment would be to be dreadfully amused at the idea that "competence" was a relevant factor ;-)

Sadly your right, I am sure the student we had on our team is now some one senior in the French civilservice.

ÉNA is a training college for civil servants. It’s more comparable to the Harvard Kennedy School than PPE. If HKS only admitted people who had undergraduate Firsts and two years of top decile work experience to the MPA they’d look pretty great, like ÉNA does.

That was the point the PPE is seen in Oxbridge by other students as an easy degree.