There are some arguements that were made in this post that don't matter at all.
One of those is: Cold start time
This isn't a big deal in the context of a web app. 8s vs 100ms. If you're scaling up a service. 8s is not a big deal in the scope of fixing a horizontal scaling issue.
Additionally, what it's considers bloat: Yes, you should optmize your app. It depends on the context of your application. Brining up a rest app that needs to stay up..who cares if it takes .5-1gb of ram.
Also, I didn't see it pointed out about the concerns of the lack of 3rd party frameworks. I find this disjointed and sparse frameworks to be more of a concern for a language/ecosystem than what the author pointed out.