This is flawed reasoning, ignoring basically all reality in business, larger projects, legacy projects etc.: Of course languages should evolve, but there is always a cost associated with it, and this should outweigh the disadvantages. And I can't see this happening here at all: We are talking about perhaps 5min of confusion (if at all) when starting Haskell compared to millions (billions?) of existing LOC perhaps needing a change (or not, who knows?), books (which can't be updated by something like 'gofix'), brains of people using Haskell for over a decade etc.

Programming languages are just like natural languages: Even if they are often irregular, they form a common ground for communication and understanding each other. Do we need irregular verbs? No. But try to take them away from native speakers... :-) Are irregular verbs really a problem? No. When you are fluent in a language you don't even think about them anymore.