As someone who has developed commercially in at least a dozen languages I couldn't disagree more.

There is no one language that is faster at prototyping than others. It's purely based on whatever you experience is and what aligns most with your way of thinking.

Some people like me need strong typing and functional constructs to be productive. Others are the complete opposite.

Some people would instantly gravitate towards SPA for anything web based others would go for SSR.

etc etc.