There is now a further article in the Bangkok Post: "THAI pilots told to keep mum about Zurich delay".
www.bangkokpost.com/news/general/1561566/thai-to-pilots-dont-talk-about-zurich?utm_source=bangkokpost.com&utm_medium=artic le_news&utm_campaign=most_recent_box
The article states "... for inactive pilots, there is no rule that first-class seats should be reserved for them or not, the source continued.". "But the pilots and the station manager should not fight and hold the passengers hostage".