DVC very much wants to stop those using SSR buses to get to their cars at Downtown Disney. So yes this could happen.
Maybe only at park closing time when there are no restaurants at SSR open for them to use or shops either.
One of the main reasons SSR buses take so long at park closing to get guests to their rooms is they dispatch buses based on room occupancy. If there are more people riding than staying there, it is just a mess. And members are paying for that service.
If some of these freeloaders, that are not shopping, not dining but simply using the SSR bus system to avoid paying to park, have to start taking a taxi to get back to their cars then yes, it would be a good thing for Disney.
For one thing all those cars left at DD all day are keeping people away that want to spend money shopping and dining. Disney is losing revenue from these people because they are not paying to park at the theme parks.
And it would cut down on complaints at SSR.
Have you ever stayed at Congress Park and seen how many people get off at that stop at park closing and walk to DD, it is a lot.