I have never been trained on an aeroplane or simulator to deal with a baulked landing, and have never met another pilot who has been.
Well, you've met one now.
In all heavy jet aircraft that I have flown, balked landings were a required demonstrated maneuver, for the initial type rating...and many times recurrent as well.
Just imagine (for example)...
You find yourself in the flare, and some bozo has entered the runway well downfield (contrary to ATC instructions), and an immediate
GO is required, to avoid a collision.
There are many situations where a balked landing is very necessay and required, to keep from ruining your whole day.
Wonder if they teach 'em at AA?