Let's imagine, just for one second, that this statement is wrong...
What would it mean... I see only three cases :

Let's start with the easiest one :
1) Only intuition is valid for identifying moves -> ok, I see this one, that should look like my games

2) Only reasons is valid for identifying moves-> humm... may be... may be not... I can't reject that possibility, but I don't feel confortable with it... (and I don't like statement that start with "only" anyway...)

And finally...

3) Neither reasons nor intuition is valid for identifying moves -> if reasons and intuition are invalid then what is valid ? it should be the divine move so...

_________________
Converting the book Shape UP! by Charles Matthews/Seong-June Kim
to the gobook format. last updated april 2015 - Index of shapes, p.211 / 216