People are conflating too many ideas. You're right that there's a huge benefit to that, but it's contigent on you as the dev being able to trust the types comin

People are conflating too many ideas. You're right that there's a huge benefit to that, but it's contigent on you as the dev being able to trust the types coming into your system, you need good docs, and attention to detail as you code. All the TS devs just conflate JS with "no types" and picture drooling idiots that make random changes without knowing the type of anything (probably because that's what they do without 50 IDE popups to guide them). You're never going to convince them of the values of dynamic typing because they have a different mental model of it in their head.