Exactly!!!
Right ... and while I do not believe the word "grace" (Hebrew chen) is found where Peterlag insists it must be in order for him to allow that grace permeates the whole of the existence of mankind, we do see God’s grace extended in His revealing/having anything at all to do with Moses and the children of Israel, or mankind in general all the way back to Adam/Eve.
If the God who created us was a God who would let mankind die of sin for 4,000 years, until Christ came to fulfill God's promise, then we are in terrible peril and trouble. We are told God is Holy, we are to praise Him. Could we praise a God so cruel and mean he would not give a way of salvation for 4,000 years? What terrible gossip this is against our Holy God.