Theif- Real stealth skill
Stealth time is limited because it’s very powerful and you’re supposed to use it strategically.
Theifs are VERY strong already and don’t need a permanent stealth.
No, GW2 doesn’t need a permanent stealth, and I can’t express how glad I am that ANet decided against it. It’s caused so many problems in other games. Thieves are fine with the stealth mechanic they have.