Both matureness of the ecosystem and developers are a big issue. For typical enterprise apps you just don't need the characteristics of Rust and therefore it doesn't make any sense to pay the penalty for using it. If…
Rust has its strength and weaknesses. Using Rust for network-latency bounded applications (e.g. web applications) simply means you're not using the right tool for the job.
Both matureness of the ecosystem and developers are a big issue. For typical enterprise apps you just don't need the characteristics of Rust and therefore it doesn't make any sense to pay the penalty for using it. If…
Rust has its strength and weaknesses. Using Rust for network-latency bounded applications (e.g. web applications) simply means you're not using the right tool for the job.