No worries. Sometimes "tone" is lost in text.
In terms of all the big names giving that direction to spread fingers, and all the video showing them doing it, I don't dispute it. But what I have yet to hear is WHY (emphasis, not yelling) they do/say it. I know it is not very "Japanese" to ask "why" when given direction, but I'm not Japanese..... What I am is a scientist/engineer looking for a solid mechanical explanation. The only one I have heard given (not on this thread) is that it increases the diameter of your wrist and somehow this creates a better/more advantageous connection with uke when grabbed. I've experimented with this and it doesn't hold water for me. Perhaps someone can elaborate...
If you ask me (nobody did), I would say it has to do with internal connection and intent, and that it is more of an effect than a cause. It would be easier to show in person, or if you can get some hands on time with someone doing what I'm talking about.