I think it’s also for themselves. More and more the TypeScript devs can focus on the typesystem and less on the whole ecosystem of deploying Javascript. I can

I think it’s also for themselves. More and more the TypeScript devs can focus on the typesystem and less on the whole ecosystem of deploying Javascript. I can imagine a day soon when Babel is integrated into tsc to do all of the non typesystem stuff. I also can imagine the TS team continuing to improve Babel support to a point where TypeScript is “just another plugin” for Babel. At which point tsc can be deprecated. The less the TS devs have to maintain the more they can focus on their core value add.