The direct link to the reason is here: https://github.com/microsoft/TypeScript/issues/13219#issuecomment-1515037604 https://github.com/microsoft/TypeScript/iss

The direct link to the reason is here: https://github.com/microsoft/TypeScript/issues/13219#issuecomment-1515037604 https://github.com/microsoft/TypeScript/issues/13219#issueco... All in all, a well-reasoned decision. And I say that as someone who actually likes typed and checked exceptions.