agree with you, i don't even see how its different from s3. Just upload and create shareable link.
The difference is that most people don't know how to do that. What they can do however is load a website and follow simple step by step instructions.
the funny thing is, thats its the same on s3. Create bucket, same analogy as a folder, upload and right click create link. Its just as simple, cheaper, and unlimited storage.