I first heard KISS as :Keep It Simple Stupid"
then ... "Keep It Simple Sweetie"
then..."Keep It Simple Spiritually"
Now it's "Keep-It-Soft-&-Shallow"?
I've not heard that before.
I think the correct quote from Dr. Bob to Bill was
"Keep it simple. Don't lose this up"
Therefore...it's never been KISS anyway
it's KIS.
It's not a term I use.