Of course it's all rigged.
Absolute proof of this is the new dungeon.
If you complete various triumphs, the drop rate of the Icebreaker increases ( or is supposed to).
Natural RNG [i][b]CANNOT [/b][/i]be weighted or modified in any way.
As soon as an advantage is applied, it is no longer RNG.
(Sees a system devised as bad luck protection so that players don't end up farming for one exotic till the end of time)
"SEE! This system devised for our benefit PROVES that bungie is acting maliciously against us!"
It can improve or worsen the outcome of particular drops, there is nothing to show weighting on perks.
The only system like that currently in the game is for exotic class items, which I do believe are coded separately from legendary items.
Beyond that, bungie has now flat out said that there is no system in place to change weighting on specific perks for legendary weapons, so unless we're working from the belief that nothing they say can be trusted, that seems pretty definitive to me.