The problem is that familiarity needs to be maintained or you can lose it. As someone that doesn't get to use Rust at my day job that can be hard to keep fresh.

I only occasionally dabble in Rust in my free time and coming back to a project of mine after months of not having used any Rust, yeah lets just say that line noise made me prematurely murder some of my pet-projects.

Sure it gets probably better with time but still it is a cost that one pays.

> ...thought the code looked like line noise and now I no longer see that

"I don't even see the code anymore. I just see blonde, brunette, ..."

I myself have just started to get like that with my understanding of Rust:

"I don't even see the `impl<P: 'static, const PS: usize> IndexMut<usize> for SomeThing<P, PS>` anymore. I just see a mutable iterator."

It alleviates the issue the way the frog doesn't notice in the "boiling frog" fable. That is, not in a good way. The cognitive load to parse and understand it is still there; you're just not as aware of it distracting from other matters. Some (me) would say it distracts from more important things, like how units of code compose and what the purpose of a program is.