It's like someone talking about Mac OS X based solely on their experience with classic Mac OS. They are entirely different products created by different people, that happen to work (or have worked) at the same huge company.
You're arguing that company track record is not a good predictor of product quality. Fine. Nonetheless, product predictions based on company track record are not "invalidated" by not having used the product, and the author made it clear what he was basing his predictions on.
