There is probably something here about human psychology where we underestimate the switching costs of things we have already, and are wired to look at things through the lens of the world we have now.

Absolutely no-one is concerned today about what happens when you dip out of connectivity because fast mobile connectivity was not abundant in 2007 (the iPhone was only released that year), which obviates the "this will never replace a USB" criticism. Mobile made a whole new class of businesses possible.