I know a lot of people in the finance & professional services here, and I think what's missing from this analysis is how Cayman bends over backwards to make it _easy_ to do business here (especial finance).
It's tax neutral but fully transparent to and compliant with UK, US, EU, and Singaporean (as well as many others). This means if you're operating a hedge fund (as an example) with high net worth clients and private investments globally you're generally able to hugely minimize the amount of paperwork to not be double-taxed. It also lets you run financial instruments which might be subject to tax while operating, rather than when earnings are captured and released. And yet, it does that without being on any global watch lists.
Financial courts here move _fast_, often ruling and concluding in weeks. And precedents are generally British Common Law (unless improved by Cayman). Starting a company is easy, and fees cover pretty good support. I have a Caymanian company, and when I had a question recently about identification regulations on non-voting shareholders I could call a number and get both a quick answer and great advice from a human being.
It's worth noting that Cayman has virtually no Crypto because of the above. We've actually tried, but no significant crypto company has been willing to subject itself to the relatively lightweight regulations. The biggest crypto startup on the island is a crypto regulatory compliance tooling company, which says a lot.
Anyhow, I'm not a lawyer or accountant, butt AMA I guess if anyone is curious about my home! :)
(It's also an amazing place to live, I love it here. Hard to recommend though because residency is notoriously hard to get if you're eligible through ancestry.)