Fine.
Stuns may be annoying, but it is needed in Overwatch.
It’s a way to deal with fast heroes and with the frontline.
As Geoff has already said in another thread:
Some heroes are of course more vulnerable to stuns. Tanks usually are because some lack mobility and have a big hitbox, but unlike flankers and squishies, have tanks a big healthpool and maybe a shield. This is why Brigitte is seen as a hard counter to flankers and a soft counter to tanks.