My problem with that is that the exact same types of people exist with regard to Disneyland. This is true even on Lutz's own site (but admittedly is far, far less common there). Heck, you can see this on Micechat MSEP discussions happening right now! But his site isn't the only Disneyland fan forum, and there are plenty of "Disney Defenders" on other popular Disneyland ones. So if those "Defenders of Mediocrity" were the ones causing things to stagnate, they'd be causing the same thing at Disneyland, too.
The difference, and the blame, lies with management. I don't doubt you that some folks in Florida point to online discussions and fans being satisfied with the product as an excuse not to improve. But that doesn't somehow shift the blame from the decision makers to the small percentage of easily satisfied fans. The point is that California management could use the exact same excuse--but they don't.
Those fans do make it easier for management to justify bad decisions, but they don't mean that the rest of us "deserve" lower quality!