This seems slightly bizarre -- sorry for /s but if you have engineers who are familiar with {language} rather than Node then they'll probably generate more sale

This seems slightly bizarre -- sorry for /s but if you have engineers who are familiar with {language} rather than Node then they'll probably generate more sales for your company building an application in {language} than they would building in in Node. The pitfalls would be that it'll be slower to get an application in {language} to production if the engineers know how program Node but not {language}.