The goal of every publicly held company is to make the absolute maximum profit possible. If it does not, the shareholders will demand that management be replaced.
So, at all times, The Walt Disney Company's goal is to squeeze every last dime of profit possible out of its operations, up to the point where they start to price themselves out of the customer's ability or willingness to pay. That's what the phrase 'charging what the market will bear' means.
That's how every business sets its prices. Car companies, fast food restaurants, clothing stores, hotels, airlines, theme parks. Everything that you buy. That's not greed. It's how a capitalist economy works.
Also, consider that just as your costs for things you buy go up every year, so do Disney's operating costs. That shouldn't come as a surprise to anyone. Ever since there's been money, prices always go up.

The company they've outsourced valet parking to is charging more. The food suppliers are charging more. Cleaning products for housekeepers cost more. As any business does, Disney passes those cost increases right on to the customer.
So, even if price increases mean that some people can no longer visit Disney World, as long as the hotels are still full, and the restaurants are fully booked, and the theme parks are packed.......it's of no consequence to Disney that some customers have left, because there are still plenty of people who CAN afford to go.
And as we've seen this year, if hotel bookings go down, all they need to do is offer some sort of promotion or code, and the hotels, restaurants and parks are packed again.