I think the lawyer who convinced the gov't that the operation was legal being a former MP and this taking place in a nation of less than 100,000 people is a crucial element to the story.
Incidentally both gambling AND fintech (including crypto) are on the list of industries I refuse to do work with. So I guess BTC gambling would have been off the table for two reasons.
His solution was a clever hack because he worked around the law without apparently breaking it directly - clever.
That said gambling systems are specifically one class of software I refuse to work on.