Not defending all of their content/conclusions - but the podcast was only like 20 minutes long so I think they were using validation errors as a general "proxy

Not defending all of their content/conclusions - but the podcast was only like 20 minutes long so I think they were using validation errors as a general "proxy metric" for the care/attention-to-detail the candidates used in making their sites. You might call it "sad and pedantic" if there were other articles out there doing the same thing, but this was really the only one I've come across (and I generally pay attention) that focused on a comparative "peeking under the hood" of the respective sites. I wish they hadn't taken that jab at Bernie, too, but the podcast was interesting if for no other reason than it's the only one of its kind I've seen thus far. I agree with you that it is a super-important topic and I hope we see some deeper dives in the future.