Guild Wars 2

Noticed recently that revenant sword 2, precision strike, tracks stealth even if the attack was executed after the target was already stealthed. So a revenant can use s2 and hit someone without ever having to know they were there. Is this intended?

Yes, it is intended. Other skills that work similarly have always behaved that way. No different than a guardian using gs5 and pulling a thief out of shadow refuge. The player in stealth always has the opportunity to anticipate it and dodge when they see the activation.

edit: which is why there were already a number of ways to counter stealth but those are more skill-based than press a button and reveal for 6 seconds but eh, not even worth the argument anymore. But yes, again it is intended, so rock on using it.