The problem with S3 is the exact same problem with everything else in AWS. In their quest to be compatible and attractive to every single possible niche use case of the world's largest companies, they completely forgot the lone developer who just wants to upload a couple files.

You'll even see this in their sales pitches. AWS will spend so much time talking about the most advanced use cases and how they are possible, but if you ask them a simple question about how to run a single bucket that doesn't also involve using all of their ML tools and global accelerator and cloudfront, they'll be blindsided. It's almost as if they consider the common use cases to be "too simple/obvious" and therefor they never bothered to create any documentation or put any thought into it.