Playing Heroes of the Storm, My team always gets the shitty novas while the enemy gets good ones.
Every time I see a Nova now I get scared.
granted, a nova can be severely countered if they have:
Abatur
Rehgar
Tassadar
Team of Tanks
and if a team has more than one of this. her gameplay goes to ***no matter how good they are.
also her gameplay revolves around a good team that can basically 4v5 or heroes with strong map presence.
but you are right, there are a lot of shitty novas.
noted, as they say "just skillshot at the glimmer to counter nova" it is hard to do and some maps are just harder to detect her. (and dont know how some people are good at this)