Coordination problems get more difficult in larger teams/companies. Getting everyone to use a particular non-standard language is a coordination problem. Thus large companies are unlikely to experiment with languages.
It makes sense too - say it's 10x easier to write something in language X than Y. If there's only 10 other people that might interact with the thing / have to read the sources, that's a great tradeoff. If there's a thousand other people that might have to at some point understand how some part of your code works, suddenly all of them have to learn the new language X.
It makes sense too - say it's 10x easier to write something in language X than Y. If there's only 10 other people that might interact with the thing / have to read the sources, that's a great tradeoff. If there's a thousand other people that might have to at some point understand how some part of your code works, suddenly all of them have to learn the new language X.