He's not wrong per se though he's wrong in this case, because many tech reviewers were overly enthusiastic about Ryzen parts and acted as-if they're much better than their Intel counterparts because they performed better in various benchmarks and productivity applications; this is kind of a meme in the gaming scene (where AMD's best CPUs generally still struggle with Intel's 10th gen offerings).
In tech your product has to be REALLY bad in order to receive critical reviews and manufacturers are basically smart enough to just not send these bad products to reviewers, so you basically get no or few reviews on them. Most reviewers are completely dependent on the manufacturers to give them stuff to review at no cost, and obviously when your reviews are too critical they're going to stop sending you stuff, which threatens the reviewer's business. There are very few reviewers who can do highly critical reviews, GamersNexus comes to mind. Notice how they're often not getting stuff from the manufacturer but buy it off the shelf instead.