pivot point default

What's the logic behind the pivot point standard being 0.435?

Is there any way to change this value to default to 0.5?

working in ACEScc(t) mostly and 0.5 would be a better starting point for me.

type .5 into the box under pivot, and yes my default node tree has changed the most (not all) of the nodes .5

.435 = skintones i belive, so a reasonable place to pivot in working in YRGB,

not as optimal with ACES tho, or if useing L*a*b color science

So no way to change the default? Alright
Changing it in the default node tree is a great idea! Thanks, Dermot!!!

.435 = skintones i belive

How would they know where my skinniness are anyway?