If that tackle is a head high penalty, you cannot tackle anywhere anymore. He came across him at the bottom of the ribcage, there is literally nothing he could have done better. The bloke has to literally duck his head to just brush his arm and the contact force was absolutely minimal. And how about the Roosters palm straight into Flegler's face, apparently that is all good, just as Liu's shoulder charge into the head of Levi was. If you think that was a legitimate high tackle and should have been penalised, well there you go, you are more easily led by the talking heads than you imply you are.