I don't know about the 1%, but you have a pretty good point.
Yeah, 1% is an exaggeration, but we are into diminishing returns: the portability benefits of removing all the heavy, bulky electro-mechanical clobber associated with floppy drives, optical drives and spinning rust hard drives - and even ridiculously bulky full-sized DVI or VGA ports - were huge, and justified a bit of transitional inconvenience. The benefits of losing USB-A ports to shave off a millimetre or two, or putting up with ultra-low-travel keyboards are less obvious.