Just an FYI to this thread: Camouflage did indeed used to be baseline but it was a bit different:
- The cooldown started as soon as you used it, not as soon as it faded
- It was not a true stealth unless you were standing still. While moving it made you untargetable by ranged attacks. It also reduced aggro radius
- There was a glyph that turned it into a full stealth in exchange for -50% run speed
- Many more abilities cancelled it back then
So there were some trade-offs.