Apple went from ROM chips to files on the CD/DVD that are installed onto the hard drive.
Tandy/Radio Shack once promoted DOS in ROM as a way of preventing virus problems;they dropped it by the time DOS 4 came along.
So it's no giant deal either way.
I think perhaps the thought of having universal hardware ,and then plugging in a personality module is very attractive but perhaps only the hobbyist or rearcher will ever see one.