This is whats gonna come back to bite him in the butt, if anything.
There's that, and there's the fact that (unfortunately) most PCs from the Windows Vista era still have problems booting from USB sticks...some from the 7 era do...
Some work fine, but with most modern PCs (the ones you buy from a store, not nice laptops from MSI or ASUS, or homebuilt desktops) seem to be a hit or miss with USB sticks...