I thought it odd also. I've tried it, prefer regular burger with the works.
I've also noticed cooking shows emphasis leaving scrambled eggs sloppy, Bobby Flay, many others. I think that's gross. I like a runny yolk on a fried egg but scrambled must be done, no snotty whites in my scrambled eggs.
They suggest that because the egg still continues to cook after removing from pan..the idea is by the time they are on the plate being eaten they are finished cooking without overcooking to rubberiness