I believe the point TylerE is trying to make is that features that take longer to deliver are a cost to the user. If a user is waiting on a feature, or perhaps a bug fix and that is taking 4x the time to deliver - the cost is right there on the user's clock waiting.

Many people would argue you with you that the "easier" programming languages are no less reliable, context depending. Framing this in the context of the article a CRUD app, there are plenty of reliable frameworks in many languages.