Good job I was not at reception at the time otherwise this pilot would be unable to report for duty.
And you would have been the one likely to end up in jail because this is Indonesia and not the UK or the USA.
Unfortunately in many parts of the world it is still usual and culturally acceptable to beat up its servants. This is just a case of an upper class "master " treating the hotel staff as inferior servants. That also explains the attitude of the other clerk and the security guard taking its time to intervene and not appearing to be condemning the behaviour.
The only reason this makes the news is the diffusion on social media of the video from the security camera and the "western" reaction..
But if you had been assaulting a airline Capt in uniform in a hotel lobby in Indonesia you would immediately be in a lot of trouble.
Different world , nothing to do with Lion air, it could have been anybody in Indonesia...