Except your assumption is complete nonsense. The more non-trivial your app is, the less the database is a bottle neck and the more the app is. The vast majori

Except your assumption is complete nonsense. The more non-trivial your app is, the less the database is a bottle neck and the more the app is. The vast majority of web apps are extremely read heavy. Those apps benefit massively from caching, which completely removes the database as a bottleneck. This means you are often choosing between a language and framework combo that means paying for 50 instances vs one that means paying for 4 instances. That is a lot of money, and the fallacious notion that the slower language is more productive by virtue of being slow is silly.