Earlier quoted context omitted.
Don't worry, the docs and APIs/libraries for AWS are just as bad Boto3 is eye-watering bad. Boto2 was written by someone with some knowledge of Python and usability. Boto3 is just "automatically generated" from their API It is not good. It is bad. The structure makes no sense. The API can be described as "the minimum that works".
I'm not here to defend AWS but I'm a bit puzzled by your comment about the Boto3 doco. Here's some sample usage for instance which clearly is something more than "automatically generated" https://boto3.amazonaws.com/v1/documentation/api/latest/guid... .
You're right that much of the documentation clearly isn't auto-generated. Of the many Amazon APIs and tools I've worked with, boto3 among the better of them in terms of documentation.