Because you don't have to hit escape or jj to exit out. You just let your foot off the pedal. No chance of accidentally being in edit mode or not.
slkjs/sdfjks/\1jksok/j23kjdj\skjd
is the same as
lkkd\kk////?!@
except latter is shorter and easier to understand
The note was actually correct and the actual expressions made sense, but to an average person both looked like a line noise. Needless to say it was his last class.