This website is likely targeted at the French administrations like the ANSSI (National Cybersecurity Agency of France) which is often mocked because of a somewhat strict `French Only Policy` in internal documents.
Here they are using `Biscuit de pile` for `Stack Cookies`: https://www.cert.ssi.gouv.fr/actualite/CERTFR-2015-ACT-047/
It may be the other way around, eg: someone inside ANSSI choosed to use `Biscuit de pile` to make people react: