And, you’ll note, they changed up their report functions to stop that.
The fact of the matter is people dole out reports towards someone they feel isn’t playing optimally or otherwise doing what they think that someone should be doing. This is so fundamentally wrong it’s the source of most toxicity in Overwatch.
Most people are trying to win, but they’re not all going to bend over backwards to do it, which is what gets some people in a tizz.