All these things should be based on people's biological sex, not their preferred sexual identity, irrespective of the "stage of transition". You could sew a trunk and big ears on a tiger and dye it grey, but it's still a tiger.
Thai Airways has never challenged the weight of my carry on bags - usually between 10kg and 15kg. I flew with them last week (PNH_BKK) and noticed that some of the other passengers' carry on bags were much larger than even my check-in bags!
There are so many inconsistencies in this news report that one might wonder whether in fact the truth is that when Thai reporters don't know the facts they just make up a story to fit the pictures.