The take-away for Haskell tends to be if there is some kind of a commitment at some "core" level to it (i.e the the long-term members of the tech team, CTO, etc

The take-away for Haskell tends to be if there is some kind of a commitment at some "core" level to it (i.e the the long-term members of the tech team, CTO, etc.). If there is none and people move in-and-out of the company, then it's more practical to use a more mainstream language, which is easier and less far-out to learn.