That's true, but since the base language is so low-level there are certain things you can't get away from.
You can never get away from the fact that String/&str and Vec/&[] are different. If I'm writing code where every allocation counts, then I need a language to be able to, for example, give me a substring without allocating. If I'm writing web code, though, the number of allocations is probably in the thousands or tens of thousands and I just don't care. But using Rust, I have to care about the difference between allocated types and slices, which is unnecessary complexity.
You can never get away from the fact that heap allocations are explicit, so most kinds of dynamism, since they rely on runtime polymorphism, need to go through Boxes or generic types or something else. I can't count the number of time's I've needed to Box something because I needed runtime polymorphism, or needed to rework an interface because I had Boxed something but now it's not object-safe.
You can never get away from Rust's ownership model, which wreaks havoc on graph-like structures that are common in a domain model (which you'll undoubtedly have in your web app/api. It's no big deal for a language with a GC, but because the memory semantics are difficult, Rust forces that difficulty onto you. Again, it would make sense if I only had some tiny amount of RAM to work with on a microcontroller, but I can spare gigs of server RAM.
All of these (and others, these are just examples) add up to complexity that is unnecessary and overwhelming for the level of abstraction that web projects deal with. Rust certainly has many great things, but it's a trade off, and imo it's one that's not worth it.
Personally, I think tools are better when they target a specific audience with specific goals and specific use-cases. I suppose I stretched calling it "unrealistic" for Rust, since, well, look where it is; I guess it's more just a position I don't understand or agree with.
Honestly the best part of Rust is (most of) the community. Most of the people I interact with are incredibly friendly, welcoming, and interested in making the community better. I wish Swift had half the community Rust does, and wasn't so Apple-controlled, because it feels like an applications-friendly version of Rust.