My guess based on no evidence whatsoever: The Rust community seems to have lots of low effort enthusiasts - people whose primary motivation is "use Rust" rather than "solve a problem". People whose motivation is to solve a problem (in this case build an emulator so they can play a game or whatever) tend to be a lot more oriented towards the end-result, rather than what tool they're using. I'm pretty confident this isn't an issue with the language.
I think it's more "learn rust" than "use rust", and nowadays a lot of partly written learning projects are published on GitHub. A lot of the similar "learn C++" projects happened earlier and either stayed private or are quite good by now.
Most of the developers I know that are learning Rust do not come from a systems language background. They have to learn the domain as well as the language, which is a high bar. Learning to write systems-like code well takes a lot of time and experience.
My guess based on no evidence whatsoever: The Rust community seems to have lots of low effort enthusiasts - people whose primary motivation is "use Rust" rather than "solve a problem". People whose motivation is to solve a problem (in this case build an emulator so they can play a game or whatever) tend to be a lot more oriented towards the end-result, rather than what tool they're using. I'm pretty confident this isn't an issue with the language.