Sorry, but here is a list of quite a few world-class scholars, apologists, theologians, etc., who disagree with that statement:
Notable Christians Open to an Old Earth Interpretation
In fact most of these people are well known for the defense of the literal Bible, contrary to the accusations that people who support local flood/old earth don't.
Also, the statement "the figures contained in the Genesis genealogies provided by simple addition a chronology from the beginning of the world up to later stages in the biblical story" is perhaps one of the most unscholarly statements I've seen in awhile. Hebrew scholarship proves without a doubt that, especially the early chronologies, cannot be and were never intended to be added up.
There are a lot of what you might refer to as "Pop Christianity" theological apologists among that list, but other than Professor John C.L. Gibson, there are (as far as I can tell) no Professors of Hebrew from any world class university mentioned in your list. There is no statement from Dr. Gibson that the writer of Genesis did not intend to convey a 24 hour day or a universal flood. The list specificially states that these are scholars and theologians who are merely "open to an old earth interpretation." While they may be "open" to it, not a single one of them can refute the statement of Professor Barr that the author of genesis chapter one intended to convey to the readers that the creation took place in a series of six literal 24 hour days.
As noted in the statement from Greenville Presbyterian Theological Seminary, the idea that it took billions of years to create the heavens and the earth and that we are in the seventh day and all that simply was foreign to the Christian Church and to Judaism until the 19th Century. So for 19 Centuries the great body of theological scholarship was in agreement that the passage was intended to convey 24 hour days. Additionally those who argued for a non-literal interpretation up until that time were not arguing for more time than 6 24 hour days, but were arguing that it occurred instantly.
The fact of the matter is that the day/age theory is new. It was developed not on a biblical basis, but as a reaction to scientific theory and data. IOW these men have changed the interpretation of the bible to meet current scientific thought.
Now can you point to any world class Hebrew Scholar at a world class university who actually disagrees with Dr. Barr's statement that Moses intended to convey that these were 24 hour days?
Notable Christians Open to an Old Earth Interpretation
The title of the link that you suggest indicates that perhaps you didn't follow the implications of what the quote that P-M posted actually said.
It said, "no professor...does not believe..the writers...intended to convey...creation...of six days..of 24 hours..."
Since that is the straight-forward reading of the passage, then to say that it is what the writers "intended to convey."
Your link uses the word "interpretation." That suggests taking the OBVIOUS and applying a methodology to it in order to arrive at an understanding.
The quote above is dealing with the "obvious" PRIOR TO the interpretation.
And the straight-forward, obvious look at the passage says, "6 days."
It is indisputable.
I stand by my assertion back at post 90.
When one considers Genesis in light of relativity and inflationary theory, both statements are true: God created the physical universe in a week (as seen from the inception space/time coordinates) - and also the physical universe is approximately 15 billion years old (from our space/time coordinates on earth).
I further assert that those who are stumped by the plants being created before the solar system ought to take note of Genesis 2:4-5 --- that the plants were created before they were in the earth. This also points to Genesis 1-3 dealing both with creation of the physical realm and the spiritual realm. That assertion is further supported by Genesis 2:9 and Rev 2:7. Namely, that the tree of life is in the center of the garden of Eden and Paradise, i.e. spiritual realm.
I also assert the intersection of the spiritual and physical realms - not only the types, such as the Temple and the Ark, but in appearances of Christ after the resurrection, the transfiguration, visitation of angels - and something to which we can all testify: the indwelling of the Holy Spirit (John, Romans 8, I Cor 2, etc.)