At this point in AWS' life, enterprise sales is king. Not surprising that there's shades of Oracle / Microsoft in them. May be, Google hired Oracle #2, Thomas Kurian, to head GCP for similar reasons. Like it or not, Oracle-sized shadow looms large over BigCloud.
Why? They're all enterprise software companies. They participate in open source to greater or lesser degrees. They seem absolutely part of the same category. This isn't either positive or negative commentary but just observation of what they do as businesses.