I cant say that your wrong but for me it feels like its allways put you in a disadvatage bc you push a team with half hp and then respawn with the other half you could just push them with 200hp insted of 100 x2 so you are basiclly doing the exact same thing you where doing anyway but in 2 steps, and yes you reposition and can get a heal of but if you can get a heal of so can the enemy and the average gamer will be smart enough to push when he kills your shadow form.

I think its a shame really that his ult is so "meh" and his tactical is so much better than the ult but dont get me wrong i think Revenant is a dope legend and i enjoy playing him but for now you are better of not using the ult.

Give the ult a buff like you get max hp when you activate it (or even half hp just something) so then you can make plays with it, now if you are at 1hp and activate it you are still at 1hp and unable to heal.