Is there anything preventing other editors from integrating LSP and making it work out of the box without any configuration other than adding a language server?
IIRC, one of the first things Neovim did was throw out literally tens of thousands of lines of legacy code from Vim.
Meanwhile, Helix can just add the `lsp-types` crate as a dependency and they're already a quarter of the way to making LSP work.
The difference between adding something to a 30-year-old C project and a new Rust project is so massive that it can actually be the difference between "fairly straightforward" and "essentially impossible".
I agree with you in principle, but in practice I’m not convinced this is an insurmountable hurdle for other editors.