Not true. Walt Disney World, as a single entity, provide three levels of accommodation, deluxe, moderate and value, this is different to a company that provides differing levels of accommodation, but, in different locations across the world, for example, Hilton Hotels have many brands to cater for different types of traveller. Whereas, Disney are catering for people with one objective, a theme park experience, but, they provide differing types of hotels to suit the pockets of these guests who have the same objective, going into the parks . By shutting down the value resorts as a whole and not leaving, say, Pop Century open, they are discriminating against people who are not as affluent as those who prefer to stay at a higher level, but who want to visit the theme parks equally as much and, by rights, should be allowed to. Disney has the resort availability, but, if the rumours are true and let's be honest here, this is just speculation and rumour, then a very clever lawyer could argue this is discriminatory, especially if Disney are not stopping off site guests from visiting the theme parks, something they are highly unlikely to do.
At the end of the day, I don't think Disney would do that simply because they would rather have guests spending money staying at their value resort than staying at a Universal resort or I-Drive and not spending money going to their parks or Disney Springs more often because of the travelling involved.