No, it's all clear. This is a poor translation derived from poor understanding by the "journalist."
The new legislation applies to Thai RESIDENTS. If you are a foreigner, tax-resident in Thailand, this law is for you.
Appears when the law was changed to tax foreign source income, foreign source income stopped incoming. Nobody saw that incoming! So now we get an even better deal, at least until 2029.
I feel sad for the fellow who paid an agent to get a "tax clearance certificate."