One thing I never see in these pro TS posts is an acknowledgement of the fact that the time you're spending learning and doing it could be used to learn some other skill. If you learn TS, that's really all you get out of it. TS knowledge doesn't help you in anything else. But for example if you invest that same time in learning TDD, you learn a lot about good design and the code your code depends on.

Also I've never seen anyone mention that there's no path to migrate back out of TS once you've adopted it.