If you watch it in slo-mo, Amani's shoulder pad and helmet impacted the receiver's shoulder pad. Then, at impact, the receiver's face mask coils over and impacts Amani's shoulder pad for a split second. Is it anatomically the head or neck? No, but, again, that word, "area."
I personally don't think it was targeting by the strict definition of the rule, but, given the subjectivity written into the rule and the violence of the hit, many if not most officials are going to make that call, whether we as fans like it or not.