I think you're being harsh, HCZ. It was disappointing to gift Bayern 2 goals in the way we did, but (1) Bayern are one of the world's best teams and 6x winners of the CL (all this talk of them being a fading force because of their Budesliga position was a load of hot air - the CL is their season now, and they were always capable of raising their game for this), and (2) its been 14 years since we were in the CL Quarters. For me talk of winning the competition was always fanciful. We are a callow team and it showed, but I don't think its unexpected that an inexperienced team and manager will make mistakes at the highest level. That said, Arteta can only pick the team, and it was not down to him that we spurned clear chances or mistakes were made for their 2 goals. Nor that Kane should have walked for his elbow and we would have had a pen at the death on another day.
So while we were naive, we are still understandably learning and gaining experience at this level. Given our history with Bayern, a draw is not the end of the world. We will learn and improve from this. I don't really expect us to go through, but calling for Arteta's head is IMO an over reaction.