I agree, That's the target segment that Disney wants visiting. But that demo is mostly represented by DVC families already (which are less favorable because the growth rate flat and they know the way stuff works and may not spend as much). The normies that they want filling up their Deluxe Resorts have many other options that are far more attractive than sweating in the hot and humid swamp.
If the strategy of appealing to that segment was working, the deluxe resorts would be booked to capacity, but they're not. Mostly because there's nothing special there. The entire Disney experience is now based on how much extra you'll pay for it, and even in these upper income segments, there's a limit of how far they'll go. It's made worse by the constant negative PR that further reinforces decision makers to consider something else. (Regardless of how many insufferable bought and paid for social media influencers shill for the Mouse.)
They've already pushed away other income demos because the moderate resorts aren't booked to capacity and the value resorts aren't booked to capacity.
Targeting all your offerings for higher spending guests is unsustainable because it eats away at visitor base that provides stability and future growth potential in exchange for short term revenue.