While it's technically true that "a large majority of clients won’t care one bit if you code their app in Meteor or Fortran as long as it just works," I take is

While it's technically true that "a large majority of clients won’t care one bit if you code their app in Meteor or Fortran as long as it just works," I take issue with the quote, "We sell them on Meteor because JavaScript is a universal language and it will be easier to hire for later when they replace us." When your application is built using a framework (or "platform") today, the underlying language often matters very little and you will realistically need a framework expert. Yes, you might be willing to pay somebody talented to learn, but a lot of good developers won't even want to touch a new framework unless they believe it will take them in a direction they already want to go in the first place. I don't envy the companies that are being sold on the frameworks and NoSQL databases du jour. Most of them are merely buying themselves a limited labor pool and high salaries/hourly rates.