Unironically, it actually should be balanced around metal ranks, but not in that sense.
Plat Hogs want Ana to be deleted, which is nonsense, but their struggle is real.
So, Blizzard should indeed balance the game in a way that reduces the frustration, through other means.
For example in the 5v5 Ana vs Hog debate, it’s obvious to anyone except the Hog players that Hog is the issue, not Ana.
Blizzard should do something about that.
Limiting the debate to “skill issue” won’t make the problem disappear.