GS #2 Might Bounce Range
I’m thinking the bounce was done this way for a reason – it was not meant to give us Might and allow us to stack it. It is more about friendly targets, if any.
What I mean is, when you toss it, and it’s just you and 1 enemy, it’ll just not and not bounce at all if you are far enough. If there’s a friendly bashing on the mob, he’ll get a Might. If you are close enough it’ll bounce back to you with Might, but that I see more an an unavoidable side-effect since GS isn’t really designed to work upclose (hence 1200 range and knockback).
Also it might look a little funky if you toss a sword 1200, especially with extra bounce trait, and then for the next 5 seconds or so it would keep bouncing between you and target (factoring in flight time at 1200 range and 3 bounces). Would look a tad redonculous.
But this is just a wild guess. How much of a Mesmer class is intentional, how much is bugged and how much totally broken, nobody knows since the Devs don’t really delve into it in any great detail. What I mean is, before iWarden fix, there was a good percentage of Mesmers who believed that Phantasmal Haste and iWarden with Waden’s Feedback were working as intended.