Other people have chosen to license their own work with the license of their choice. The license is being complied with by AWS in fact and in spirit.
If you don't agree with the spirit of the Apache license terms, that's fine. You can draft an Apache-for-everyone-except-AWS license and lobby for its use by others.
You are missing the forest for the trees. I don't see many (really any) people saying that AWS went against the license terms. Simply that their actions do not benefit these projects in any proportional way which they rely on heavily. I'm sure many of these projects would much rather just have more collaboration and support from AWS than to have to think about and deal with a major player being a bad actor.
Edit: I am much more talking about projects like Postgres than companies like Elastic.
If you don't agree with the spirit of the Apache license terms, that's fine. You can draft an Apache-for-everyone-except-AWS license and lobby for its use by others.