I don't understand the point you are attempting to make here.And the same could be said of the OE view of yom in Genesis 1
The reason I don't interpret "yom" as a 24-hour day in Genesis 1 is that I believe the context does not warrant it based on what is written in Genesis 2. I believe Genesis 2 is as inspired as Genesis 1, and I'm not one of those people who believe that the two chapters contradict. Since there is an obvious contradiction in the way "yom" is used in Genesis 2:4 (as opposed to Genesis 1) and the order of the creation of the woman is in a difference sequence, I have to reconsider whether or not Genesis 1 is intended to describe the method by which God created or whether it has another purpose.
My entry into this discussion was simply to point out that the Hebrew does not necessarily advocate a 24-hour day, no matter how many times you'll hear people claim it. Genesis 2:4 (among many others) demolishes that assertion. And since Genesis 2 was likely written or compiled about the same time as Genesis 1, it is the strongest kind of evidence that it is not an example of language evolving or getting "looser" in meaning.
I find it interesting that, for the most part, OE advocates are arguing the text of the creation narratives while YE advocates are reaching for proof texts outside of the area of immediate interest or attacking the perceived beliefs, motivations and actions of the OE advocates.
Other than Steadfast Fred, I don't recall seeing too many YE advocates dealing with what Genesis 2:4 actually says.
Regarding other references to six days of creation in scripture, they do not necessarily support six day creation since the Hebrews often used metaphor in this way to describe a spiritual concept, not a literal reality. For instance, the Hebrews often spoke of the 12 tribes of Israel when there were actually 13! Joseph's sons, Ephriam and Menasseh, were given the status of independent tribes when Israel (Jacob) claimed them as his own children in Genesis 48.