It really has nothing to do with distrust or the phone game but with reading an account concentrating on how the flood is described and applying some logic and common sense. Can you truly say a flood of beer or fire is just a change in the telling or can you admit that not all flood stories are descriptions of the one in the bible?
If you will read what I wrote previously:
"Besides, we are not asserting that this was the only flood that ever happened in earth's history, so it could be that some of these legends were based on local floods, or pulled from the Biblical account and shrank to a smaller scale."
So no I did not assert that.
You trust the bible account and have used the phone game as an indicator of changes in the flood accounts. Well then lets apply that concept to the biblical account itself. The Bible account is not the oldest. The Epic of Gilgamesh is older and the epic of Atrahasis older still. Since the two Epics were written before the Bible then they would be considered the older accounts that the Bible is based on. If we look at them, the Epic of Atrahasis describes a river flood. The Epic of Gilgamesh, a very close copy of Atrahasis has had some wording changed and makes the river flood into a global flood. Then we have the Bible, farther removed from the original which continues the global flood theme.
If you are talking about the oldest written account you may be correct, but we were talking about oral history, so you have no basis for this assertion. Further examination of the Genesis account gives us an idea of how early this oral history was gathered:
..., Genesis 10:19 gives matter-of-fact directions, ‘as you go toward Sodom and Gomorrah and Admah and Zeboiim’. These were the cities of the plain God destroyed for their extreme wickedness 500 years before Moses. Yet Genesis gives directions at a time when they were well-known landmarks, not buried under the Dead Sea.
Speaking of the epic of gilgamesh, it speaks of a polytheistic culture:
It is common to make legends out of historical events, but not history from legends. The liberals also commonly assert that monotheism is a late evolutionary religious development. The Bible teaches that mankind was originally monotheistic. Archaeological evidence suggests the same, indicating that only later did mankind degenerate into idolatrous pantheism.
So archaeology indicates that the epic of gilgamesh is a derivation of the Biblical account, not vice versa.