[BroJoeK]

MHGinTN: "God supplies the message and as Creator Sovereign has every right to tweak the message along the way, so that the creation brings forth what He, The Creator, intends and 'had' with Him in the Beginning."

The Bible is unambiguous on the question: God performs many miracles, so why not expect "miracles" in the evolution of life on earth?

The answer is found in the definition of the word "miracle".
A "miracle" is an intervention by G*d intended to help its human witnesses achieve and increase their faith in Him.
So in eras and places where there were no humans, why would G*d ever need to perform a miracle?
Why not just let G*d's original plan play itself out, as intended?
After all, how could G*d be in such a hurry that He didn't have time for His natural processes to work?

[MHGinTN]

The Bible actually points to the places where a bit of tweaking has occurred. One would be the eruption of light where no photon expression was yet occurring; another would be eruption of life in an otherwise lifeless universe. I would propose that another (though not 'the next', necessarily) is the advent of Adam, an animal with a spirit in its soul of life. And yet another is the coming of Jesus to dwell among us.

As to God not in a hurry, well fifteen billion years is but a sixth or seventh day in His perspective, though a mighty long time to us who live in this fleshly vehicle for less than 100 years ... 100 years being less than blink in 14.5 billion (you can sum the zeroes if you wish). Which of course points to the not so subtle realization that our concept of Dimension time is rather primitive, to this stage in our learning of the Universe in which we find meaning.