I don't agree with the logic here. It seems you assume the goal of creation is a static design, one the perhaps has us front and center and free from all changes, which entails the pains of growth in order to endure.
No, I don't assume any goal at all. I don't assume a creation. I don't assume anything static, as we observe that nature isn't static at all. Don't confuse my criticisms of those who DO assume these things as my assumptions too. I'm illustrating the absurdity of such assumptions.
My criticism of those who claim guided evolution MUST explain all the consequences. They don't, they avoid them. Let's note the primary reason to claim guided evolution is to benefit humans as a special species, which of course is grounded in the tradition of Abrahamic religion. So how has guided evolution heped huamns, or any set of other organisms? I suggest bacteria much be God's favored life form. Humans are just another great living space for God's chosen. Look at flesh eating bacteria, magnificent. Heck, some bacteria kill humans, so how can it be that humans are special and bacteria are not? Sure humans have been successful in killing God's chosen with antibiotics, but the intelligence behind guided evolution has allowed bacteria the adaptive power to become resistance and once again kill humans more and more.
You see my point is, all these notions of an Intelligent Designer start with this presumption of a world that would be ideal to our species, with our ideas of what ideal should look like. It is nothing short of this: "How I would do it if I were God."
Right, this is clearly not the case. Humans get no special treatment by nature. Humans almost died off, with some 100,000 individuals at one point. We survived, and with our big brains we were able to give ourselves more advantages, mostly cooperation and tools. How does any human today end up thinking humans are special as a svecies? Bad religion. It's arrogant and appeals to the most insecure of minds. And look where this assumption leads, arrogant and unevidenced belief.
But suppose the purpose of creation is the proliferation of Life itself into a continual every changing myriad of diverse forms for the sake of the knowledge of existence for the sake of, say, joy?
Until your child is attacked by a lion and dragged off into the wild. Oh well, have more kids.
My point is your Logan's Run scenario isn't real or true in reality. In reality humans have to fight just like any other animal. That our big brain allowed us to gain more advantages helped, but hasn't eliminated risks. There was a news story last week of a retired guy building a cabin in woods somewhere, and he was attacked and killed by a bear as his neighbors watched. That's the risk of seeking joy. Yes, they killed the bear soon after.
Now all of a sudden, what we see fits better with that premise. Now humans are not the purpose of creation and our satisfaction with ourselves as the center of the universe. Now humans are a brilliant and important and unique form of this Divine creative outpouring into form, for its own sake?
How brilliant is it to assume such things when evidence doesn't support it? Your view is not supported by the observatives. It is little more than self-service to the ego. That sort of thing is warned about in Buddhism.
Now, like those leaves on the tree for that season, we get to soak in the rays of the sun and feed nutrients into the Divine body we are attached to. The purpose of the tree is not the leaves, but the tree itself. Now, an adaptive system makes more sense, than a static tree made of immobile, unchanging stone.
Careful if you are fair-skinned, skin cancer.
But why evolve leaves on trees so humans get shade, why not more caves? Why evolve humans with fair skin at all that are more at risk of the sun?
See how your idealistic and narrow thinking is highly flawed if you look at the whole picture? In science tests need to account for ALL the data, it doesn't get to pick just the confirming bits. That's called confirmation bias. You are guilty of this. Why?
Or Love.
Yin and Yang. A dynamic system seeks to right itself through imbalances. Any dynamic system is not smooth and flawless. Again, you are imaging what you as God would do, presuming God should "think" like the human being in its own self-interest would think. That's the flaw, and the error of logic. "Logic is the art of going wrong with confidence".
Notice that the balance can be natural, but also what humans decide is a balance. Be careful to see the difference.