Would you want to risk it knowing that if you planned a trip there and they had been blocked you wouldn't even have the option to buy a ticket at the gate? I don't think I would want to take that risk.
But you can add (link) such tickets to your My Disney Experience account. Justbecause Disney won't sell new tickets directly, I'm just wondering if you bought such tickets now and then put them on your account, could you still "reserve" a park entry? I guess we'll see.