1. Programmer has a domain problem ill-fitted to his current programming language of choice and knowledge is said language's libraries.

2. Programmer switches languages to one well-suited to the domain and his current knowledge.

3. Miraculously, the domain's previous speed and abstraction munging issues suddenly disappear.

Why is this news?

Use the right tool for the right job. Syntax matters. Baked-In abstractions matter. Standardized library interfaces matter. This is precisely why the number of programming languages has grown, not shrunk, over time.

For the most part, programming languages aren't "better" or "worse"; than each other; they're simply "different".

Let that same programmer attempt to leverage C against an entirely different problem domain, such as a 3D physics simulation, and watch how rapidly the language's merits suddenly dissolve.