WTF, How is RNG differ from drop rate?

http://wiki.ffxiclopedia.org/wiki/Jaggedy-Eared_Jack

Rabbit Charm (1.4%)
Lottery Spawn from a Forest Hare at (G-9), (G-10), (H-9) or (H-10). Minimum re-spawn time is 50 minutes

Problem.

Its been around forever, you always have a change to get the drop per the drop rate %...
Its nothing new, go play in the street