No, that's why I'm asking ;). The reference you point to certainly provides no immediate answer (pretty much a placeholder); I agree that simplicity can be fake, but if you define something as

"God's existence is absolute and it includes no composition and we comprehend only the fact that He exists, not His essence. Consequently it is a false assumption to hold that He has any positive attribute... still less has He accidents (מקרה), which could be described by an attribute. Hence it is clear that He has no positive attribute whatever. The negative attributes are necessary to direct the mind to the truths which we must believe... When we say of this being, that it exists, we mean that its non-existence is impossible; it is living — it is not dead; ...it is the first — its existence is not due to any cause; it has power, wisdom, and will — it is not feeble or ignorant; He is One — there are not more Gods than one… Every attribute predicated of God denotes either the quality of an action, or, when the attribute is intended to convey some idea of the Divine Being itself — and not of His actions — the negation of the opposite"

it sounds like it's perfectly simple, by definition. BTW, even if wrong, Maimonides should get credit for recognizing the virtue of simplicity ;). This was 14th century.

Anyway, my intellectual toolkit is not sufficient to figure this out from the moment, so I am asking for help regurgitating this a little, if anyone wants to take this up as an exercise. The question does have persona significance to me.