Consumer Reports and others have found that most of the "issues" reported with EVs in these rankings are software glitches, often solvable with a reboot or an over-the-air software update: https://www.greencars.com/expert-insights/are-electric-cars-...
“The organization also found that Tesla, which is often lauded for its sophisticated technology, was not a paragon of reliability, ranking dead-last among brands”
That's just a re-stating of the same ridiculous source data that declares any issue, no matter how trivial, to be of equal weight. It's also effectively punishing the carmakers who acknowledge and fix problems.