If He is, as you say, an omniscient and omnipotent entity His Acts and existence are all things at once, and the sequential timeline which you and I exist on would not apply to Him. You see, you are clearly applying your frame of reference on an entity which you have conceded is omniscient and omnipotent and therefore not bound by your frame of reference.
QED
Actually you are applying your frame of reference to Him-
"Why hasn't He gotten around to it?"
"Because a Century is like a Day to Him."
"Okay, why is he limited by time whatsoever? Why can't He do it all in an instant? Why does he even need an entire Divine Day? All moments are the moment to Him. If he wants goodness to reign, why not make it happen now? Isn't God the ultimate parallel processor?"
But here we are, as predicted, trying to fathom the unfathomable mind of God! Which is the theologian's ultimate excuse for everything that makes no sense about their portrayal of their God.
You might step back some day and ask yourself- why is theology always trying to come up with some feeble and unconvincing excuse to explain aspects of religion that make no logical sense at all- explanations that would not be accepted by a 2 year old if the same type of arguments were made in terms of the natural universe instead of a religious one?
"Why does hot water rise?"
"Because it pleases an invisible supernatural being."
"Why does it please this invisible being?"
"We mere mortals cannot understand the mind of God!"
"How do we know?"
"Because He inspired people to write a book about it."
"How do we know He wrote this book?"
"Because the book says he did."
By the way- this is a parady, not a straw man.