If we're talking about burst potential, why aren't Snipers/Gunslingers getting looked at? They'll drop you just as fast as a Scoundrel any day.
Also, if they're going to go ahead with this, there's a few minor tweaks they could cushion the blow with.
For example, put back the ability to click a cap point while in stealth. I have no idea why this was removed last patch, it didn't give the stealth classes any advantage.
How about making WZ Adrenals usable in stealth? I've clicked a few before forgetting I'm in stealth and they've just eaten me for breakfast when I pop out right in the middle of the opposite faction.