"Engineers don't use AWS because it's good"

Several patterns emerged out of cloud services that enable cloud services to work better - namely event driven architectures, various cost savings strategies, HA/DR postures, etc - that cannot be applied to non-cloud architectures or even monoliths. If your team wants these patterns, you need to go cloud. Said differently: if they want experience in AWS, that's a proxy for wanting to learn these other techniques.

Moreover, this tweet is the rant of a single person that apparently doesn't care for AWS.

totally agree (make that N=2). Almost nothing can be trusted anymore to an engineering team that will not result in it being implemented AWS/Azure/etc. More than ever we have incredible processors, loads of memory and storage and bandwidth, that allow us to do insane stuff within the confines of a single machine, but no! we want to go serverless everthing.

For many, many applications than can be deployed on a single server, AWS introduces the potential of uncontrollable lifetime costs, more threat vectors, vastly increased vendor lockin, lower performance....

AWS and their ilk are like cults now. Okay! need to stop