Revenant is still viable, right?

Revenant is absolutely viable, I'm currently maining him this season.

Passive: Sneaking up on enemies. Crouch strafing while hip-firing. Being able to climb tall walls without worrying about fumbling for the right climbing point. Or just choosing to crouch instead of walk around a corner to catch an enemy off guard. This is probably my favorite ability in Revs arsenal, just cause I use it so often.

Tactical: I can see why people don't like his tactical that much, especially cause even when you tag an enemy it's hard to tell just how effective it was. I still like to use it as a warning indicator, if I'm healing/reviving a teammate I'll place one in a way so that I'll know if I'm being pushed. I've managed to down some players and win many fist fights with the tactical (that extra 10 damage can mean a lot). It is one of the weaker tacticals but I think that's its intention when he's got a good passive and a really good ult.

Ult: What can I say, it gives you and your teammates a second chance or let's you push from a defensible position safely, and with it buffed you don't necessarily have to heal up before pushing again. One slight change I'd give it is that instead of disabling heals, the shadow effect is removed if you consume a healing item.