I agree 100%.

TypeScript is an invaluable, mature technology that provides large productivity boosts to any team that maintains a mid-sized code base.

It plays extremely well with React too, and it's benefits are independent of the tech stack. If you are used to typed components/templates, you will NEVER want to go back.

I would argue that is more important to have static typing in the front-end compared to the back-end in a web-application context. There is more state, lot's of shared entities and unit tests are expensive to write and maintain.