Any idea why Thai Smile flight always get cancelled?

To all those sceptics and rumour mongers who have been saying flights from UK going to be banned in the last few days. Here you are flights have still been arriving.

I know it may not seem to Have any direct impact on us, but would Thai airways run commercial flights to destinations outside of Thailand, only to return the planes empty, I know the company has a reputation of being very poorly run And is emerging out of bankruptcy, but wouldn’t that be a very financially poor decision? So maybe these flights are in anticipation of bringing foreigners back to Thailand. Let’s wait and see..

For all the talk about full flights leaving BKK, my flight on Korean Air to ICN then USA is about 90% empty

only hearsay however leading politicians and respected travel writers in uk are saying ' no overseas travel outside europe until 2021