If he really did take those and did all the assignments himself and understood all the concepts, that still puts him at least in the 95th percentile among ML job seekers.
But it shows intent for junior roles.
People have no idea how many people just put "AI enthusiast" on LinkedIn profile and start to seek ML roles.
I have had people only with Excel skills apply to ML roles.
And, true thing is every company’s ML tooling/stack/procedure is wildly different. One has to learn on the job.