Rust's fearless concurrency[0] allows devs to write and refactor performant parallel code without the risk of introducing bugs, enabling them to ship upgrades faster.
It's the same benefit you get from strong, static types in a large project vs one with dynamic/weak types, but for another category of bugs. In large projects, it makes a difference.
---
0. Hopefully you'll forget the meme ;-)
Re:WebAssembly: Mozilla Won
by MisterBastahrd on Thursday June 01, 2017 @10:50AM
(#14460709)
I switched away from Firefox because at the time it was bloated, buggy, and slow. I haven't switched back because I am more familiar with Google's developer tools.
My general belief is that general-audience users don't care at all about bugs like those. Which is why we have so very many of them, and have for decades.