I think widows ult is really really good at what it does now. the best way to use the ult is whenever a battle is about to start. this gives your team a massive advantage as it’ll allow everyone on your team to make the 1st move. ice seen whole teams just wait it out all huddled together because of how strong having perfect information is.
Another thing it’s very useful for is calling out flanks, if you think someone on the enemy team is flanking you can pop and your team will pounce on them basically garenteeing you a pick before the fight even starts.
is it stupid that widow gets the best anti flanking tool in the game, yes but hey we ain’t here to talk about that