Comment by ThePhysicist

Recently there's a strong tendency in the Python ecosystem to wrap perfectly fine idioms with even higher abstractions. Not sure if I like this, in the end it leads to a lot of cargo culting and people writing code they don't fully understand because it contains a lot of metaclass and runtime magic. But I understand that a lot of developers find this attractive, and type annotations really provide a good channel for realizing such functionality, so maybe I'm just being grumpy here.