From this, I get that there are two kinds of problems with a product or service: A weakness, which is something bad that is orthogonal to a product's value proposition, and a drawback, which is an integral part of the value proposition. An example of an Apple drawback would have been its one button mouse for many years: During the period when many Mac buyers were first-time computer users, the single button was part of the simplicity of the interface, but it also was annoying to those who had more experience and wanted more power at their fingertips.
I remember this when thinking about tethering my iPad. This is a weakness, not a drawback. It can certainly be fixed without undermining the iPad's value proposition. If somebody starts selling a lot of tablets that sync to the cloud, Apple can release a firmware or iOS update that syncs to the cloud and boom, no more weakness.
It's annoying but it isn't deeply tied to the iPad's value proposition. So I predict that if and when Apple thinks it is more of a hinderance than a help, it will be changed, and the change will be fairly painless.