If you have a local “digital twin” of the service, it makes it much easier to develop against using AI. This would likely drive adoption.

Without the infrastructure behind it to make it make sense, cloud platforms just seem like convoluted ways of storing data and launching applications/VMs to me.

The only functional use of a tool like this to me would be to learn how to use AWS so that I can work for people who want me to use AWS. Would that not be to Amazon's benefit?

It's not clear that it would be a net-negative on the revenue.

It could encourage more development and adoption and lead to being a net-positive for the revenue.