Disney is in the business of making your vacation magical. They aren't going to go out of their way to irritate you. The Disney response is almost always: "Let me see if there is something I can do."
That said, if there isn't anything they can do, then there isn't anything they can do. ...And that said, recent discounts suggest that many eateries are operating at less than full capacity, so maybe there is something that they can do. Disney is certainly trying to get more people at the tables. But this does not mean that anyone should expect to be successful on any particular occasion. If you are successful, thank your lucky stars and tip well. If you are not successful, don't mope and blame Disney. They did not create the adverse situation, you (or your in-laws; or your college roommate who lives in Winter Park) did.
