[osigurdson]

I can't tell if the article is recommending not using 3rd party packages or simple not to get caught up in an opinionated framework. I agree that opinionated frameworks don't can be problematic as they don't compose but can't agree that with the statement that 3rd party libraries are bad. This is basically build vs buy argument favouring the build side.

A more measured approach would be to avoid 3rd party packages that aren't very popular or are not particularly active.

[dinkleberg]

It is recommending the latter. Instead of using an opinionated framework like buffalo or revel, they are recommending either using the standard lib or single purpose libraries like Chi for routing.