I see your point but the problem with that is if you don't focus on stealth then the whole mechanic will become totally useless which doesn't seem very fair compared to the other class mechanics.
I am totally agree with you mat. If a lower GS score has no chance against a high one than why are we actually play PvP ? Just add the GS of each member of the team and you can automaticaly have the winner, no need to fight !
Oh I got another idea, let's remove the stealth mechanic, the daze cc and oh wait let's remove rogue's armor too. It would be so much fun AND balance to chase them while they are running naked on the map ! (however I am agree with the lashing blade point ^^ Wayyyy too much damage for an encounter)