Sounds like we just want to make stealth a timed buff and not permanent, only due to the fact folks can run around unseen and engage on their terms. That is essentially what stealth classes or builds to stealth are. It has limits, counters and requires you to have counter measures in place. If not, yeah, you might just get ambushed by a group of slayers. Stealth in of itself is fine. Classes and their kits on the other hand are either ok, lackluster or down right superb. That looks to change soon.