Apparently Americans are not part of "it's open for anyone to use"
Tried to access it from the US and got
403 ERROR
The request could not be satisfied.
The Amazon CloudFront distribution is configured to block access from your country.
Generated by cloudfront (CloudFront)
Request ID: VHAppfdRXhGS1TMFQ4-fnV21guIgWpEAhd8mfgddxw==