I'm not so sure. Both Go and Rust seem like examples of very popular ecosystems with a set of common, "blessed" tooling. (They didn't have everything from the get-go, e.g. rust-analyzer was very popular before it became part of the Rust project, but it still demonstrates that a large ecosystem can rally around a set of common tooling.)
That's a fair point, but I don't think it's really fair to say Gleam has everything necessary included when it's brand new. Because it currently doesn't suffer from the problems of the JS ecosystem doesn't mean it won't in the future.
(As another example besides rust-analyzer, there's also all the Go dependency management tools that existed before native Go modules, e.g. Dep, Glide, Go Package Manager, etc.)
