I have been printing for a living since 1976 , those notes are a joke and completely useless and very misleading to young printers.
Basically turning a simple process into a complete useless diagram that nobody in their right mind would follow. It is very misleading and complete useless info.
I suggest that one should , look at the neg, look at the easel , and look at the print as it emerges in the developer, by observing one will make better prints.
These are just notes. A tool to help him save time when he wants to go back and reprint the negative. Nothing beats years of experience in the darkroom.
"Photography, like surfing, is an infinite process, a constantly evolving exploration of life."