To pile on: WireGuard doesn't even have ciphersuites, exactly because of the arguments Filippo makes in this post. You get Curve25519 and ChaPoly, and that's it.
It seems then in keeping with ideas being followed elsewhere.
Casually (not a security expert) this makes a let of sense to me. If I'm copying my stack overflow code out for my security stuff, maybe have fewer footguns?
Not sure this is a terrible idea then.