Earlier quoted context omitted.
I think it does say something about the future of the open source model though. Namely, that if you have a company that offers something like a database as a service, search as a service or some other API, and plan to support it's development by offering your own managed service - DO NOT OPEN SOURCE IT WITH PERMISSIVE LICENCES, AMAZON WILL UNDERCUT YOU. AND THEY WILL ALWAYS DO IT CHEAPER BECAUSE THEY DONT HAVE TO FUN…
'AND THEY WILL ALWAYS DO IT CHEAPER BECAUSE THEY DONT HAVE TO FUND FURTHER DEVELOPMENT.' Well, they DID actually contribute patches as the whole ES project was 'upstream-first', this is mentioned in the post with proofs. From what I can find online, it looks like DocumentDB is actually a layer on top of the AWS Aurora PostgreSQL offering. This means they created a MongoDB compatible API, but are not offering a hosted…
I'd not consider that actively developing a product and adding new features.