19% Headshot on duelist sound like my rank diamond fall short
It's not overrated if you know how to look at it though, A low HS rate doesn't mean a player is bad at aiming but a high HS% with lots of kills definitely means a player is very clean at aiming and is generally calm and will win more 1v1s.
So atleast on tracker if I am looking at a pro's profile(someone in radiant) I will look for HS% only at weaponwise section. If a pro has HS> 50% with Vandal and HS > 60% with Sherrif and Guardian; 9/10 times he is a top top aimer but vice-versa of this doesnt necessarily means he is a bad aimer.
Honestly, Primmie was out of his depth in this game. Frost and Crws definitely need better plans against more organised and well-oiled teams like GENG and DRX. But keep in mind he was using the Operator and shotguns in certain rounds so that will drive down his HS% - common on Split for duelists. And as someone else said, this stat is kind of overrated. It gives some dopamine seeing it very high alongside a lot of kills, but it is not a sustainable stat especially when the aim meta is more flicky than calm.