I haven't failed to consider that, you've just failed to read where I explicitly mentioned that.
Consider: is that impracticality caused by Amazon creating vendor lock-in? Or is that impracticality caused by the fact that reading terabytes of data from storage, transferring it over the network, and writing it into storage is inherently slow because of the physical limitations of hardware, no matter what vendor you're using?
It's a bit odd for me to be in the position of defending Amazon here. I genuinely don't like them, don't use them, and generally do think they're guilty of creating a lot of vendor lock-in. But this is legitimately not an example of any of that.
You're really claiming you can read my mind to know what I have and have not considered right now, despite me bringing it up specifically. Alrighty then.
As is, I've no responsibility to show you anything, and you're just making unwarranted assumptions about what I have and haven't considered, based on a pretty selective reading of what I've said.