Interesting, but a big risk is that generic interfaces/software will limit functionality and lead to suboptimal performance. Amazon can roll out a new kind of

Interesting, but a big risk is that generic interfaces/software will limit functionality and lead to suboptimal performance. Amazon can roll out a new kind of hyper-advanced SSD-based database with some awkard custom interface any day of the week because they control the hardware, software, and API. You just cannot do that if your software runs in hundreds of different environments you cannot control.