In my experience, the majority of negative responses are rooted in fundamental misunderstandings of type systems and expressive power. The vast majority of everyday programmers are pretty much only familiar with Java or TypeScript when it comes to statically typed languages, and it can be hard to get people with that background to understand or appreciate the substantial increase in capability that systems like Rust's provide.

(The issue is further exacerbated, in my opinion, by the prevailing notion that test-driven development is superior to — or at least generally more than adequate for — anything and everything that could be desired. Years ago there was a tense Twitter exchange between Bob Martin [of "Clean Code" note] and Shriram Krishnamurthi [a prominent programming languages researcher and professor at Brown University] on this topic, Martin seemingly unwilling to move past a TDD-oriented worldview at that time.)