> What did the Rust community expect to happen if they so strongly and often claimed that Rust is easy to learn and user-friendly?

No one really claimed it was easy to learn. Find me one Rustacean that claims Rust is as easy as Python/Ruby/Go.

But it is higher level language with decent ergonomic and in such way it can be interpreted as user-friendly.

> If a C++ programmer (ideal Rust learner)

If Java programmer (me) can learn Rust in a year enough to contribute to Servo development, you (ideal Rust learner) should have no problem either.

Plus Google saw about 6-month to get people up to speed with Rust.