This probably comes down to the Thai culture and an authoritarian approach. If you couple that with a lack of understand of the modern Twit, Gram and Face brigade that can 'lynch' you electronically ... then there will be more of this. We have famously seen United start to learn the lesson and other companies (not just airlines) are doing so too.
What those involved (at middle and senior levels) have to learn is that, a conflict - however minor - that you think has been resolved to your satisfaction, will be on the Net before you have walked from the aircraft back to your office. So be thinking about the e-lynching whilst the problem is evolving! That does not mean giving in to whatever is being demanded but know what the contract says for all parties involved. Be ready with your explanation to your senior manager!