its not crazy to me... ive worked at a couple of places that decided to try to use libraries in a web services context. They were all disasters, and the libraries ended up being considered severe tech debt. The practical aspects of updating all the consumers of your library, and how the libraries interact with persistence stores end up being their undoing.
probably 1000s hah. It's the speed of change. third party libraries dont change much, or fast - and you dont really want them to. The software you build internally at a product company with 500+ engineers changes much much faster. And you want it to.
