Comment by EugeneOZ

Please see reply in nearby comment (to follow DRY principle :)), and I want to note that second reason is also important: a lot of people are scared already by initial complexity of Rust and Rust's syntax. It's a mistake, because after couple of months Rust looks not more difficult than PHP or JavaScript (but gives much more satisfaction). So less quirks Rust will have - more readable and predictable code will be for newcomers.