Complex systems are expensive to operate, in many ways.
The more complexity you build into your own systems on top of the providers you depend on, the more likely you are to shoot yourself in the foot when you run into complexity issues that you’ve never seen before.
And the times that is most likely to happen is when one of your complex service providers goes down.
If the kind of thing you’re talking about could be feasibly done, then Netflix would have already done it. The fact that Netflix hasn’t solved this problem is a strong indicator that piling more proprietary complexity on top of all the vendor complexity you inherit from using a given service, well that’s a really hard problem in and of itself.
The more complexity you build into your own systems on top of the providers you depend on, the more likely you are to shoot yourself in the foot when you run into complexity issues that you’ve never seen before.
And the times that is most likely to happen is when one of your complex service providers goes down.
If the kind of thing you’re talking about could be feasibly done, then Netflix would have already done it. The fact that Netflix hasn’t solved this problem is a strong indicator that piling more proprietary complexity on top of all the vendor complexity you inherit from using a given service, well that’s a really hard problem in and of itself.