Looks like they learned from when they removed the previous photopass+ (The 2 week version) in late 2015 and removed this one without warning. People were buying them up when word got out that it was being discontinued (myself included). When I used mine, it was 4-5 months after they stopped selling them and a cast member had to go looking for one when I brought my code for it to the park.
What I find interesting, is I can't even seem to find the one day photopass+ on the website, but I can find it for sale on the
Disneyland App.