"Yeah, that is the only way I'd see rolling making any sense. Randomise what sort of character you get rather than just how powerful they are.
I really don't see point in rolling and arranging."
This little tangent is entirely about rolling
and arranging.
I've been in games where you roll down the line and are stuck. I've been in games where you roll down the line and can swap one pair. And I've been in games where you roll and arrange to suit your needs. You didn't see the point for the last one, so I provided an example to show you a possible reason(point) that someone might have for roll and arrange.