Yes, you would think so. Haskell would also be good for encouraging stateless/FP programming which makes unit-testing or property testing much easier. I can make GPT-4 write test-suites for functions which are straightforward data structure transformations, like rewriting strings, but I struggle to create tests for any of the imperative stuff. There presumably would be some way to test all of the imperative buffer editing Elisp code, but I have no idea what.

However, in my use so far, I have not noticed any striking differences in error rates between Haskell and the others.