EDIT: I didn't read the article thoroughly. It looks like they're still supporting Typescript user code.
> Most people don't have the context to understand this narrow technical document - it is only applicable to a very particular, very technical situation in the internals of Deno. This is not at all a reflection on the usefulness of TypeScript in general. It's not a discussion about any publicly visible interface in Deno. Deno, of course, will support TypeScript forever. A website or server written in TypeScript is a very very different type of program than Deno - maybe much more so than novice programmers can appreciate - little of Deno is written in TypeScript. The target audience is the 5 to 10 people who work on this particular internal system. Please don't draw any broader conclusions.
(Almost) all npm packages that are written in typescript expose .js and then .d.ts files, so you can't "just import the .ts". This is because of huge variances in tsconfig.json files.