That might be a valid argument except it doesn't apply to the OP. She now makes that claim, but her original post made her intent quite clear. So the argument that Disney has a glitchy website just doesn't fly in this case.
No where in that original post does she say this happened because of a problem with the website.
Regardless, my answer to that is, if she had booked multiples due to a glitch, cancel them asap. But she didn't and she didn't because she wanted multiple reservations so she could cherry pick the one that fit her best later. For that, while I'm glad Disney chose to help her out, I manage to muster up no sympathy at all.
And while for Disney's sake, they probably ought to protect themselves from this kind of thing, when you choose to do things like this, you are open to whatever problems you get. Again, just because you can, doesn't mean you should. If Disney decides today that they're cancelling fp's for any room that gets cancelled, the guest who decided to book a throwaway and is arriving today has no gripe coming. Don't do what you shouldn't do- even if you can.