Thai language classes still seem to be under the Ed visa, which I can see makes sense, but it's kinda too bad in a way, and it would be nice to see it added to the DTV as it's just as cultural as Muay Thai or cooking classes..
I would gladly have paid for a language school for the DTV since I take Thai language classes while here anyway.. I'd personally rather spend my money on language classes, even if I did end up having to keep renewing my classes for the DTV, if it came to that. But I went with the workaction as I do work remotely with a US based platform..
But, yeah, I don't think Thai language can be used for the DTV path.. That would still be under the Ed visa..