Thanks for defining a word, I guess?  Are you implying that rapid and erratic are synonyms?

ABS isn’t meant to reduce stopping distances. It’s meant to allow more control. If having it in 4WD lets you lock up all 4 wheels because locking one effectively locks at least 2 then this could be the explanation.

It's always funny to me how people posting on an alleged enthusiast website are so scared of their cars.