Maybe I’m forgetting something but I can’t think of a single significant open source project created by Amazon. As far as I can tell they prefer to keep their differentiating services proprietary to their platform. That’s about as far from open source as you can get.
There’s nothing wrong with that per se, but I do think it’s pretty rich that they’re going to try to claim the high road in a dispute with a company that actually has created something as useful as Elasticsearch and released it as open source (with caveats, yes). It’s pretty easy to be high and mighty about open source when you’re on the taking side.
It seems to me that if companies like Elastic can’t defend their ability to make a profit from companies like Amazon there’s a good chance we’re all going to miss out. I think it’s pretty obvious that Amazon’s not going to create the next Elasticsearch and release it as open source.