I thought I'd watch it after your post as it sounds really bad... is that all it was? I thought I was going to see him ranting and raving 😆
He did a little gesture of displeasure at the pass but that was it. His 'non-reaction' to the goal is probably due to the fact that we're 6-0 up. It's pretty similar to the 5th except on that occasion he did a tiny fist pump whilst still looking pissed off. He's just got a resting wanker face imo.
It's really weird how people take so much issue with Arteta's touchline demeanour. I had a convo with a Spurs fan who said he's the most dislikeable manager in PL history. I asked why and he couldn't really pick anything out without sounding silly so he left it at "its just how he is". Yet cuddly Klopp gets away with screaming at fourth officials and being genuinely nasty to reporters and broadcasters because... I dunno? He smiles a lot?
On another note re it being a dead game. How often have we complained about us stepping off the gas on here? I'd say being serious at 5 or 6-nil sends a pretty strong message to the players about not letting standards drop. I loved how serious and excitable they were when late on when they prevented a goal and I loved how Ode kept on pressing and doing the right things. That all probably comes from Arteta being an uncompromising brat.