This is the typical Ana copium post. She would not be trash without anti, because how strong sleep it. To hit nade is also not that much skill and hitting her shots with zero falloff is also not that hard.
Give her mobility and remove anti. She still would have good damage potential, and sleep would still be a deadly hit for all heroes.
And no, no hero should almost instantly die, just because they got antied. She restrics tanks so much, that heroes like Hog, Mauga and Queen are OP if you not play Ana, but weak as hell if you play Ana.
Sorry, but your comment stupid.