Depends on whether God was trying to teach them a lesson about getting too big for their britches; or whether the planted info was there for some other reason than to fool them; or whether some saboteur planted the fakes to estrange God and man; or any of a number of other circumstances you left out.
The evidence for evolution has not been faked, so we can rule that one out. To fake all the evidnce would require a coordinated and ongoining conspiracy of at least hundreds of thousands of people in every country in the world over centuries. It doesn't make any sense whatsoever.
God plants lies to keep us from getting too big for our britches? That's no better. Why would He give us these amazing capacities for reason and observation then prohibit us from using them? And what other reason could He have had for lying to His children with planted falsehoods?
If you claim one must use rigorous testing, Occam's razor, etc., then it is inconsistent with your stated methodology to go around making ad hoc assumptions about God's behaviour or motivations...
No offense, but that's nonsense. If you do wish to apply Occam's Razor, which is the simpler solution - that our natural science reveals the truth about the age of the Earth, that there is a global conspiracy to plant evidence or that God has been deliberately tricking His children for hundreds of years? I think the answer is quite clear.
Regardless, I have never claimed that the supernatural is subject to the rules of science. That's because it's not science.
Belated Merry Christmas to you. I had a lovely Christmas with my family, and hope you had the same.
Cheers!