That has always been the policy for any product ordered from the advanced section. I have gotten one of those emails everytime I ordered from that section. Its stated right on the store page in the advanced section and in the store forum. It used to be in the stickies but someone removed it. The one year part is the only part they changed.
All advanced section products are experimones since this is a word Androtics has coined for there testing line.
Usually they do ship under the time they have posted which is probably what happened when you ordered P74. Cant complain about that. My bet is you will get your order in way less then the posted time