So, today I noticed that these Premium Points were added to my account.
Another 2016 were added.
I had been hoping for 2016 for each return trip I'd done in January but now realize after reading the fine print that it doesn't work that way
So a pretty lame campaign in my view.

Here's the fine print which I didn't notice earlier.
* To earn ANA Premium Ponits, you must complete the retroactive registration of your flight miles by April 20, 2016 (Wednesday) 23:59 [Japan Time].
* ANA Premium Points for this campaign can be earned once per person.
* Please refer to the ANA Privacy Policy for information about the handling of personal data.
* Members who participate in this campaign may not be eligible to participate in other campaigns launched in the same period.