It would be too much to do a full catalog of errata but some examples that come to mind are...
referencing the wrong original curve: Malkin pro as a modified P88 when the most common Malkin pro is much closer to an E4
missing similarities: Kovalev pro rocker and Hossa pro rocker are very similar (usually--both players had a lot of variants) and their very slight deviations from the P89
posting the wrong pattern picture: the P71 he introduced as the Burns, MacKinnon, and Barzal pro pattern looked more like the E13 than the W10 Gionta that they were using at the time
not seeing what he's looking at or how the curve is performing: he says the McDavid is basically the same curve as the P92 when it's clearly got a mid-toe pocket, similar to an Ovechkin pro. He notices it shoots like it's curved the way it actually is, but he misidentifies it when talking analyzing the curve geometry in the first segment of his McDavid pro pattern video.