I must say that I agree with you about it being brought into another era. However, I don't feel that it was 12,000 BC as you state. If anything, I would say anywhere from 10,000-8,000 BC. It says "over 10,000 years" which implies more than, but I would assume no more than 500 years.
In regards to the icebergs in your other topic, have you noticed that we still have glaciers in some parts of North America? Montana still has a few glaciers, although they are receding due to the global warming. Even from a Biblical perspective (with the shortest timeline), they are still well over 8,000 years old. Put some glaciers, even in the middle of a tropical region during the middle of an ice age, and it will still take several thousand years for them to completely melt. The temperature just doesn't rise overnight, it rises at a rate of, I'd assume, something like 0.000000005 degrees a year. So even in 7,600 BC, I could see there still being icebergs. Heck, the Dead Sea was frozen, and obviously it can be influenced by El Nido's weather, since Schala managed to summon the magnetic storm which was over not only the Dead Sea, but the areas around it.