You still have not shown any reason why he cannot be dated or why it is interpretation.
The age of the mummy, 5,350-5,100 years before present, as assessed by radiocarbon dating, has offered scientists a unique opportunity to investigate the life and health status of a Late Neolithic human
That still does not answer the question of why there is NO super genome as when we look at contemporaries of Adam.
There is an additional issue. As presented in the OP
His mitochondrial DNA is from the haplogroup K.
That is very important. As a contemporary of Adam, his His mitochondrial DNA is very close to Eve. Yet it is not some supergroup but rather from one haplogroup, infact a sub-group even of that, exactly the opposite of what would be predicted if there was some super-genome.
There is also no supergenome seen in any of the things found with Oetzi.
You haven't proved he was a contemporary of Adam. Prove that and then we'll discuss the super genome and whether or not he has it and what it would look like. But there is no reason to believe he is a contemporary of Adam. Maybe a few hundred years old.
Okay, now you have made an assertion. I have radiocarbon dating not just of Oetzi, but other items found with Oetzi.
What is your evidence that he is only a few hundred years old?
How many folk in the 1700s wore clothing like Oetzis?
How many folk in the 1700s ate food like Oetzi?
How many folk in the 1700s were armed like Oetzi?
How many folk in the 1700s were killed by arrows like those used to kill Oetzi?
Why isn't the sub-group he belongs to found in the area today?
Well I have provided the evidence that he is about 5300 years old. Since this year is 5767, we DO know what the environment was like when Adam lived.
So let's move on to the question related to his mitochondrial DNA. It is from the haplogroup K and infact a sub-group of the K group. Since he is obviously a child or grandchild of Eve, why is the mitochondrial DNA from a sub-group?
Nothing. If Eve had existed, it is very likely though that Oetzi is a child or at most grand-child of Eve.
It would be unexpected to find that much change in simply one generation, two, maybe three at most. If things were mutating that fast, we should see even greater differences between the various genomes found and what is seen today.
But we didn't.
Everything was pretty normal. Nothing very surprising genetically.
Re: What is this theory of a Super Genome, anyway?
Well, as usual, when you try to pin down a Creationist on the exact model you find they simply run away, change the subject, palm the pea or respond with nonsense. But it is basically that life today is actually devolved from previous higher state, with the classic non-specificity that the earlier period might be before the fall or before the flood depending one whichever fantasy the creationist happens to be defending at the time.
The beauty of Oetzi though was in one event we got to sample the makeup of a whole ecosystem. We have Oetzi's genes, pollen, skin and hides, grasses, what he ate that day, blood from several other people, wood materials. It was amazing. In addition to genetic makeup we got physical evidence, mineralogy, fungus to test, just a wealth of information about that area at the time Adam would have been alive.
And the only possible conclusion was, the world at that time, the people at that time, the genomes at that time, the minerals at that time, the plants and animals and fungus at that time were pretty much just like they are today.
WK covered most of it, but there is a little more. The first time I remember hearing the idea put forward was in relation to the then new information being found that there were different genetic groups. The idea presented was that Adam and Eve's genes would have contained all the possible variations and that their children just inherited some of the genetic information from the parents. This was, IIRC the beginnings of the Super Genome idea.
The concept was an attempt to explain all the variety seen as something other than "New Information" and there were lots of examples tossed around, comparisons to hands of cards being different but still just a subgrouping of the original 52 cards.
The idea was of devolution where each succeeding generation would have less perfection, less of the original genetic material.
There is a similar version that uses a Super-Genome in a slightly different way, as something that drives Super-Hyper Speed evolution. This version says that all the life we see comes from evolution of the "Kinds" taken on the ARK. Well, to get what we see if there was an initial population of only two to seven of each kind requires evolution at a speed simply unimaginable.
But what Oetzi shows us is that things just weren't all that different even during the time Adam supposedly lived. There just isn't some Super-Genome or Super-Hyper Speed Evolution.