I think you are missing the point.
The TAT leader knows well that for many reasons, some domestic, some global that Thai tourism numbers will remain significantly below 2019 levels for several years to come.
Obviously, the best way to spin that positively is to present it publicly as the result of a deliberate TAT policy and strategy change to attract “higher quality” tourists in lower numbers.
Of course, the reality on the ground will be much different and all Thailand will actually achieve will be to attract lower volumes of ‘lower quality’ tourists.
This is great news for the ‘lower quality’ tourists, who can head to Thailand in Q1 or Q2’22 (after ASQ/local general restrictions relaxed) for a wonderful holiday with plentiful choices, reasonable prices and undercrowding on offer ! I guess it will feel like Thailand of 20 years ago.