Reducing the friction to publishing portable inter-related code modules to the world to near zero like npm has is an incredible thing. Everyone is still trying to understand the ramifications. The downside is that there's more garbage on there, but believe me, restricting your choice of module to the 30% of high quality ones is a trivial task for a experienced dev. If you want to criticise the platform on the basis that inexperienced devs use it and mess up sometimes that's up to you, but it seems pretty reductive.