I know. It also takes only a few seconds to look up a word in a dictionary.
It takes much longer to memorize thousands of ever-changing chords for different projects. And when you haven't memorized them, typing is going to be very slow and awkward. Kinda like trying to write an essay when you need a dictionary for every other word.
I'm skeptical of this. A chord sequence is of similar complexity to an identifier (the keys on a stenotype keyboard have mnemonic designations to make this easier), and people memorize commonly-used identifiers just fine, as part of getting familiar with a new project.