Most Ults seem to go like this: amazing when starting, becoming horrible as people learn them (LoS or Rein's shield or genji's deflection for McRee and Soldier and DVa), become amazing again in organized play. DVa using ultimate on a team being frozen by Mei's Ult or trapped by an Icewall. Reaper's Ult after McRee flashbangs Rein's shield down. It's a cooperative game, and enhanced so much when people can coordinate things and improve plays a lot more than just having a standard DVa Ult to chase people off an attack/defense point.