This doesn't explain the government crusade against low-end tourist businesses.
If there is a richer audience, businesses will adjust without any interference by the authorities. The Highlander will turn into a Rolex store. Koppas will turn into a Michelin-starred restaurant. Hush will turn into a real estate agency selling expensive villas.
Since all these places are still operating as usual, it means the "new money" isn't really there, and the government is working against the market by bullying businesses and making up new rules to make their life difficult.
The crusade against the West End has nothing to do with the market evolution.
No doubt, since half of 5* hotels on the island are closed already. This doesn't mean you can convert every hotel in San An into a 5* luxury resort and make 5x the money. The demand has grown multiple times for sure, but it is still way too low to sustain the island's economy on luxury travel alone.