We are in an early stage, we will have a distributed version by end of this year.
It isn't about "YAS3I". It isn't compatible just for the compatibility sake.
Minio implementation is opinionated: "There is only one way to do it". Given a choice between Amazon S3 and OpenStack SwiftAPI compatibility, we picked Amazon S3. As SwiftAPI gains adoption, we may switch over to SwiftAPI, but will have to drop S3 then. Let the community decide.