The problem with Rust is that Rust cannot be understood by someone who never had to do manual memory management. So people coming from Java, Ruby, Python, Javascript, PHP who have never used C or C++ will never understand why Rust handles variables the way it does. Rust cannot be popular among these people because Rust doesn't solve their immediate problems in terms of performances.

the Rust team often pretends they are open to suggestions as to how to make Rust easy or easier to learn, that's impossible given how memory management is done in Rust, especially in regard of the people i talked about in the former paragraph.

Only a developer familiar with C or C++ can appreciate Rust semantics. The others cannot.