The article mentions that newer detergents do better with unrinsed dishes. And I remember a commercial about a dishwasher that could eat a cake. My old model sure couldn't do that! If I wasn't careful I'd find hunks of food sitting inside after it ran. It also used to be that putting thin tupperware on the bottom rack was a sure way to melt it. Now I can't remember the last time that happened to me.
Things that used to provably matter... now don't.
On the other hand, I have a family member who loads the spoons in a big pile, and they stick together and don't get clean. Or, I had roommates who kept putting my good knives in the dishwasher, and the finish got ruined. That stuff still matters.
I like the article's conclusion: we can just get the answers, and update our knowledge. We don't have to treat this like a pre-internet argument, where we just went in circles repeating heresay.