There are researches backing some sort of "typed language is better for LLM". Like https://arxiv.org/abs/2504.09246, Type-Constrained Code Generation with Language Models, where LLM's output is constrainted by type checkers.

Also https://arxiv.org/abs/2406.03283, Enhancing Repository-Level Code Generation with Integrated Contextual Information, uses staic analyzers to produce prompts with more context info.

Yet, the argument does directly translate to the conclusion that typed language is rigorously better for LLM without external tools. However, typed language and its static analysis information do seem to help LLM.