I think they are shooting themselves in the foot with this approach. If you have to run a monte carlo simulation on every one of their services at your own time and expense just to understand performance and costs, people will naturally shy away from such black boxes.
I don't this isn't true. In fact, it seems that in the industry, many developers don't proceed with caution and go straight into usage, only to find the problems later down the road. This is a result of intense marketing on the part of cloud providers.
This is how much it takes for a CTO to demand the next week that "everything should be done with AWS cloud-native stuff if possible".