Interesting but that proves the point even more --- it's hardly "calibration" when it effectively does nothing more than write constants to the EEPROM. They certainly have enough processing power in the machine to do that automatically too without needing anything more, but instead they make everyone go through a whole song-and-dance to do this trivial process; which doesn't even require Apple's involvement.
"Set the angle to 0 (closed) and press Enter. Open 10 degrees and press Enter. Repeat for every 10 degrees from 0 to 170" would be an example of actual calibration.
"Set the angle to 0 (closed) and press Enter. Open 10 degrees and press Enter. Repeat for every 10 degrees from 0 to 170" would be an example of actual calibration.