Maybe I'm failing to get my point across. I'm not saying that JS is the end-all-be-all of frontend languages, but that some people are speaking as if TS is the messiah and that any JS compiled without it is flimsy garbage. That tells me that people either have limited experience with TypeScript or they were poorly educated when they first began using JavaScript. TypeScript is probably a good tool for them to use. TypeScript is becoming more popular, perhaps with good reason, but the negative attitude TS fans have towards JavaScript is often very immature.

As you say, there are still niches where C is good, and C is going to be around for a very long time because it's used for so many things. To claim that someone can't write a well-built application that is maintainable and scalable is asinine. I myself probably wouldn't choose to write an application in C, but that doesn't mean I'm going to thumb my nose at anyone who decides to write applications with C. C is perfectly fine, and if someone is frustrated with it, then maybe it's just not the right programming language for them.