> JavaScript is so powerful and amazing, it’s a bummer to hamstring your app by using TypeScript and classic OO inheritance models that preclude the beauty and dynamics of JavaScript as a functional, prototypal language.

The idea that Microsoft was attempting to turn JS into an object oriented C# clone was a very common objection in the early days of TS (especially since one of the lead developers on the project is also the primary architect of C#). That objection ended up being completely false. TS aims to type check the full gamut of existing JS, and embraces all of the language's quirks and idioms. There are people doing serious functional programming in TS with libraries like fp-ts and effect (which is basically the TS version of Scala's Zio). If this is your primary objection I would give TS a second look.