I think use of autobrake does require skill.
Skill to use a suitable setting. It is almost always set one level too high in my experience.
Skill in releasing it - a fierce jab on the toe brakes that has everyone jerked into their straps is not very professional, yet almost always occurs.
Skill in releasing it at a sensible time. So often it is released (with that great stab on the pedals) almost as soon as it has started working - followed by jerky and uneven braking after that. If you don't want to use it then don't select it in the first place. If you do, leave it in to do its job, part of which has to so with passenger comfort.
Manual braking is seldom done smoothly, so learn to do it properly or use the bloody automatics! Please!