From a purely non-technical and business standpoint, my working thesis is that AMZN saw MDB as an opportunity to get more folks onto AMZN cloud, but there was a problem… “MDB is too complicated to figure out and use”.
AMZN decides, “We can build a solution that makes the front end easier for Developers, and then we have them hooked to us for our AWS needs while meeting their DB needs”. AMZN can then offer this solution to developers as part of a AWS package of solutions.
I further suspect - cannot confirm - that AMZN has figured out how to patch in their other DB properties (aka ACID capabilities, etc) and realized they can offer DBaaS through AWS for NoSQL solutions.
So now, Amazon can offer a solution that sells/sweetens AWS contracts while solving an issue with the “ease of use” that MongoDB developers complained about. So now that AMZN can offer a similar service as MDB, why wouldn’t they start competing? They make money two ways (DBaaS and AWS) while MDB only makes DBaaS.
I have NO basis for this reasoning, NO knowledge that this has occurred, and NO confidence this is the case. But in my “worst case scenario”, this is exactly what has happened, and what it ultimately means, is that Atlas’ investment thesis has competition for developers on the AWS service, but holds true on all other services.
Again, this is a WAG