Just used the wayback machine and found they silently changed "Get Asia Miles ... for every fanfares booking" to "Get Asia Miles ... for every fanfares booking on Business and Premium Economy Class". In fact, you can find the old image of that line from the image address by changing 201611 to 201610.

Meanwhile, before I read this post, I checked some HKG-Europe advance fares and found what used to be O class is now Q class (maybe with ~HK$100 difference). Well I always thought of trying fanfares because they are much of a bargain than the most discounted advance fares, paying less and earning something. Now there's less incentive to go fanfares.