dsquared37 - Thank you the link. I was amused by this comment there:

"I received the same reply. I can guarantee the majority of J customers did not agree with this policy! Maybe it was taken in consultation with members of the local mosque, but certainly not with anyone who actually pays for business class and wants a glass of wine!"

In my view, in J class, there is a very reasonable expectation that alcohol will be offered. When I decide to pay extra for J on TG TPE-BKK, it is partly because of TG's excellent wine list. Otherwise I would just fly Y.