I don't exactly understand why Haste was made into a separate dialect when it "just" has a different stdlib?

> with a different set of standard libraries

Is there a technical reason why it would be ill advised to just make Haste itself into a separate library that can be included into the regular Haskell ecosystem? Doesn't this type of fragmentation cause huge delays in the progress of a language, ultimately?

Hopefully it's obvious that I'm entirely not knowledgeable about these things and that I'd love for someone to explain this to me.