My answer was in response to the "you have to use Dee" in your post, but to add to this, you're right and you still can't use Wise to transfer money out of Thailand.
I think you have misunderstood what MJCM was talking about in the earlier discussion. I only use Wise for their transfer service but it's possible to hold money with Wise in several currencies including Thai Baht. This can then be transferred to other currencies or your bank account in Thailand (or elsewhere) freely. The key point (I believe) is that any balances can not be funded from THB deposits. The deposits must be made from another approved currency but once in Wise can be changed from one currency to another at will.
Does that make more sense?