It isn't just aws though. You could say exactly the same about digital ocean or linode.

Even if you have your own rack at a colocation, you could argue that if you don't have full disk encryption someone could simply copy your disk.

I am just trying to be practical. If someone is intent on reading what users specifically send me, they can probably find bad hygiene on my part and get it but my concern is they should not be able to do this wholesale at scale for everyone.

> if you don't have full disk encryption someone could simply copy your disk.

You can have full-disk encryption then. It can still possibly be compromised using more advanced methods like cold boot attacks but they are relatively involved, and is very detectable in the form of causing downtime.