The author ignores the fact that TypeScript is being heavily promoted by Microsoft. TypeScript isn't an experiment, but something Microsoft is trying to sell, along with their IDE. He starts it with a quote from a colleague rather than citing examples of people attacking TypeScript, as if it's a forgone conclusion that people have gone overboard on attacking it. I hate to see an argument for a programming language st…
I highly doubt that they created TypeScript to try to sell more copies of Visual Studio. I mean TypeScript is under the Apache 2.0 License so I don't see what would stop other IDEs (like JetBrain's WebStorm/PHPStorm/RubyMine/etc...) from integrating TypeScript into them (and I really hope they do soon).