Lisp/smalltalk programmers have been going on about this tradeoff for a long time. It mattered before LLMs too. Lisp/Clojure repl allowing you to compile tiny parts of your program inside your running program is incredible for your feedback/iteration loop.

Ironically, this is also what makes them shine with LLMs, the LLM has access to the running program and can modify it while it's running to get feedback instantly.

Complex type systems are cool. But, they are not free. I say this as someone who's first programming language was Haskell.