Come on man. You really think that if he goes just a bit higher, he A) doesn't make the tackle, or B) gets fined? Seriously? You think he's that uncoordinated? He clearly targets Higs' knees with momentum that is clearly unnecessary. He could have easily taken him down by going higher and it still would have been a hard hit.
Stafford rarely just goes off on someone unless it's actually dirty (like with the hit to the head of Kupp). It was VERY clear to him. Then that punk apes him? Fuck him. That clitoris can eat a dick.
You mentioned earlier that it is not his job to worry about the offensive player's safety. Well you are clearly ignoring rules like defenseless receiver, spearing, targeting, face masking, horse collar, etc... They all demand that the defensive player consider the safety of the offensive player.