Maybe he was doing experiments like scientist to see how a world can exist with homo sapiens. I am surprised you didn't give a answer for why was dinosaurs here.
I don't see why an omnipotent and all perfect god would need to do experiments.
I completely agree. If god is omniscient and omnipotent (by definition) then there would be no need to experiment. This too begs the question for the existence of older life forms (like the dinosaurs) for the creationist view that life exists in much the same form as when God created that species... If God created life on this planet whole cloth (instead of having life evolve from one species to the next), then it seems to stand to reason that God would have just created humans right away instead of creating some other life form that existed before humans walked the planet.
Also, no one knows how life started but the only people with plausible ideas on the subject are scientists. As with all of their theories, there's a point of first hypothesizing and gathering data before they can say anything definitively unlike the religious who claim 100% with zero evidence.
I think this may be in part for some of our disagreements... Not
all religions claim to have a definitive answer to everything, nor do
all believers have a fixed view of the universe. I think it comes down to another statement of faith...
If your faith is that God is absolute truth and the Bible is the
actual word of God, then it stands that the Bible must also be absolute truth. People that hold this as their beliefs will then maintain the veracity of the Bible's account vs. scientific theories, since the Bible is true whereas science is just the accepted understanding of how the universe operates based on the best evidence that we flawed humans can come up with.
If on the other hand your faith states that the Bible is the
inspired word of God that too was written by us flawed humans, then neither the Bible nor science can state what the absolute truth is. People that hold this as their faith can therefore accept the claims that science has made as probably being closer to the truth (since the writers of the Bible didn't have the knowledge that we do today) and thus
can change their beliefs just as a scientist does when shown additional evidence that opposes their previous vies of the world.
As such, the Roman Catholic church (to which I belong) which believes the Bible is the inspired word of God, has undergone several changes in its view of the universe as new scientific evidence is presented. From viewing the Earth as the geocentric, anthropocentric, flat world of only a few thousand years in age; we now accept that the globe is much older, ellipses the sun, and is not the center of the universe neither in terms of physical space nor in it's importance. I will agree that there are times when this change in the view of the world is extremely slow (as evidenced by the apology that the Catholic church gave for its trial of Galileo some 300+ years after the fact), it still doesn't mean that religion cannot change with the times.
Now I will grant that in this discussion your statement is probably a more accurate depiction since the whole tread is about evolution vs. creationism, and those religions that tend to hold to the Bible being literal fact will believe in the account given in the book of Genesis of our planet's (and species') origins. Therefore, those that hold to the truth of creationism as stated in the Bible tend to be more immutable in the face of scientific evidence again because their faith professes that the Bible is always true whereas science is the work of humans and can therefore be fallible.