Well of course record sales alone don't reflect on the quality of the product. In fairness, my quote was paraphrased. How about the omitted mentioning of selling out shows around the world for the past 25 years straight part? Not to mention, the fans have been fans for just as long without much wavering. Does that not convey that they have a (unfathomable) following who give them merit of "quality"? Again, not a huge fan. They're just not a "terrible band". Nobody sounded like Pearl Jam when they first came out. Nobody. The appeal and success was ALL their own making. They aren't "the machine". They aren't Justin "the child star" Beiber, whom has no concept of a dive bar. They're a band who made it. They played the bars and paid their dues.
If we're talking things we don't understand, I don't understand why people (generally speaking) in a bass community, who are looking for advice on how to better their playing, better their gear, their performance and on and on, take the advice to their own benefit, but when the tables turn and it comes to a successful band, they don't approve of their success and accomplishments.