Why are you circling out 2 countries out of the numerous others, who get longer visa free stays than Thailand, if they reverse their 60 days back to 30 days. Which was the discussion in the first place, whether they align with their neighbours. They are not.
These two nations' nationals are probably not even represented on this forum at all, so I couldn't care less. Before they got only 15 days VOA as well, in Thailand, if I'm correct.