Funny thing how the game works, too. Mistakes are pretty clearly signposted when they happen, and players have all sorts of tools outside of other players to tell them they're making mistakes.
Healthbar low? That trade probably wasn't worth.
Grey screen? Went too deep in, should've backed out.
Low KDA? Playing too safe, not getting anywhere.
Enemy roaming? Not enough threat presence.
If someone makes a mistake, odds are high that they already are well aware of it. They've all the clues in the world around their screen and at the push of a button to see what they might be doing wrong.
Beyond that, though...
...where any amount of criticism, even when worded positively, is a valid report.
How come I've given criticism here and there, and have yet to have a hitch in Honor Progression, let alone suffer a punishment?
Giving criticism is about knowing when and how to deliver it. If you're getting punished or validly reported for giving criticism, then, I'm inclined to criticise your timing and delivery.
Rather than stewing in silence and misplaced anger, why not learn how to improve yourself, if you can't improve others?