Horntail/Zakum Drops: Intentional or Accidental?

I don't think 2x drop ever worked on Horntail ever, even before this patch. Drops were always the same to me. Just as a note, its a guaranteed fact that Horntail will always drop 4-5 pendants, 2 eggs, 2 Maple Warrior 20 books, and a ton of everything else. Pendants always dropped more than once though, they're like zakum helms.