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It's not about being closed to other languages, it's about being economically pragmatic in many, many cases.

As shown in the article, you can build ONCE an app that loads in milliseconds by just providing an url to any potential customer. It works on mobile and on desktop, on any operating system.

The native alternative requires:

- Multiple development for any platform you target (to be widely used you need *at least* ios, android, macOS and windows.) - Customers are required to download and install something before using your platform, creating additional friction.

And all of this to obtain at most 20-30ms better loading times?

There are plenty of cases where native makes sense and is necessary, but most apps have very little to gain at the cost of a massive increase in development resources.

Native to the web like web components or a native platform?

The problem of native apps isn't the language but the app stores.

Web deployment is easier, faster and cheaper.