This is Thailand, why should the radio have western music all over it? Normal music for Thai is luktung, morlam, phua cheewit, string etc not western sounds. People will never be demanding international bands beyond a few such as Blackpink or BTS while they have such great music of thier own, one thing Thais have a genius for is music.
Thailand does not need inflated western ego's, some with minimal talent coming at enormous cost. The few that have appeared here like Elton John, the Gaga woman and potty mouthed Cardi B have not gone down that well. For tickets costing thousands of baht Thais expect to see a show and be entertained, turning up is not enough.