This TL;DR doesn't seem to reflect the article. My take from the article was that the DMV tester did understand how regen braking works but thought the use of r

This TL;DR doesn't seem to reflect the article. My take from the article was that the DMV tester did understand how regen braking works but thought the use of regen braking prevented demonstrating one of the skills required to pass the test. The tester even advised to bring a non-EV vehicle when re-taking the test which indicates they knew that regen was a feature of EV vehicles and that the particular vehicle was not having brake problems.