I agree -- no, and I'm bummed.
DW & I just got back from a trip in late Sept, and are planning to take DGD6 right after Thanksgiving. We bought our DAPs from Costco on 7/31, just before the price change. $269 with a $50 gift certificate, making the net cost $219. But we didn't buy one for DGD because she's not going until late Nov, and the Costco passes required a first use by 10/31. I figured that the price will go up a little, but they'll come out with a new Costco deal with a new expiration, but still get the $50 certificate. WRONG!! So DGD's pass will cost us the full $289. Bummer.
And I've since read on DIS the expiration is really "advisory", to encourage people to quickly use them; but that they'll still honor them at the gate, possibly after giving you some static.
-Bob