I think people want all of this to be true, but I don't know that it is. For example, there is nothing that suggests the trend toward greater concentration of wealth in the upper income bracket relative to the middle income bracket is going to change anytime soon. So, if anything, the economic incentives to pitch their product to this group may increase along with their relative share of the national income.
It is also less clear to me that we're seeing low attendance right now. My impression is more that it is stagnant for Disney and Universal with perhaps a slight decline, but not that it is low. Compared to any year in the 1990s, for example, it would probably be considered a record-breaking year for WDW. So, is that really not viable if those who are attending are paying increasing amounts and their ability to do so will also likely continue to increase?
None of this comes from a place of being happy about what is happening, but rather trying to be open eyed about it and understanding why it is happening.