Here's my view on languages: They have strengths and weaknesses. They cater to different needs, as you say. If you have the need for what Rust, say, does, and Rust solves some real problems for you and makes your job a lot easier, then it's kind of natural that you think Rust is wonderful. In fact, what you found is that Rust is wonderful for that problem, not that it's wonderful in general. But it's real easy to think that your situation is more universal than it is, and therefore that Rust (in this example) is this wonderful language that makes all of programming so much better.
Once you've fallen into that flawed perspective, then it becomes easy to criticize other languages. Why would you ever want to use Scala? It doesn't have Rust's advantages. But people miss that, if you have a Scala problem rather than a Rust problem, and you pick Rust anyway, it's not going to go well...
Here's my view on languages: They have strengths and weaknesses. They cater to different needs, as you say. If you have the need for what Rust, say, does, and Rust solves some real problems for you and makes your job a lot easier, then it's kind of natural that you think Rust is wonderful. In fact, what you found is that Rust is wonderful for that problem, not that it's wonderful in general. But it's real easy to think that your situation is more universal than it is, and therefore that Rust (in this example) is this wonderful language that makes all of programming so much better.
Once you've fallen into that flawed perspective, then it becomes easy to criticize other languages. Why would you ever want to use Scala? It doesn't have Rust's advantages. But people miss that, if you have a Scala problem rather than a Rust problem, and you pick Rust anyway, it's not going to go well...