Indeed. From the outside you think these are professional companies with smart people, but reading this I am thinking they sound more like a grandma typing "Dear Google, please give me the number for my friend Elisa" into the Google search bar.
Basically, they don't seem to understand their own product.. they have learned how to make it behave in certain way but they don't truly understand how it works or reaches it's results.
I like to imagine them as the people holding the chains on an ever-growing King Kong
Yes? That's not really a secret. This is a 2014-level comment on the black box nature of deep learning. Everyone knows this.
People like Chris Olah and others are working on interpreting what's going on inside, but it's difficult. They are hiring very smart people and have made some progress.