Suppressive Fire range

[RiceisNice]

On topic though, it's because Stun is much more useful than Silence in 95% of all fights.

Except in those cases, stun is functionally the same as silence except the former is prone to diminishing returns. Even for A3S, I have not seen a difference in the interaction of the lubricants as far as interrupting their sprint is concerned.

It's more useful on open world mobs (which are practically a joke) and PvP (which is in it's own can of worms), but for most of the party content, stun is functionally the same as silence when it comes to interrupt, and being used as a damage foddler doesn't use up the diminishing returns of the more potent one that the tank or even monk/drg