Just to raise an important 'hold on a minute...', not to try to 'discredit' anything, just because what I say is true and something that not everybody realises.
One thing to be very careful of, radiocarbon dating is not this highly accurate tool that produces hard facts like some people think. Results can be distorted due to numerous factors such as climate, contamination, etc. Also, the dating of ancient documents is problematic as they date the material that the text is written on, rather than the writing itself, and parchments might well have been reused multiple times (although they can identify if this is the case).
One of the current 'oldest Qurans' is considered to be the Sana'a Manuscript which was radiocarbon dated twice giving ranges of 433-599 (obviously too early), and 543-643 (most likely too early).
When dating a manuscript, radiocarbon dating is not the number 1 tool, it is a helpful guide but is less important than other factors from textual analysis, history, philology, palaeography, etc.
People overrate radiocarbon dating as it is "science", and people overrate scientific techniques in general. "Science" is always seen as better than "not science" when the opposite is frequently true when dating manuscripts.
Oldest Quran found makes nice headlines and gets nice publicity for the university, but there is a reason that 'oldest' is in quotation marks as it is far from proven. The problem is most people will take this as fact. It is highly likely that this date will be revised later as that is frequently the case with ancient documents of all types.
I think that the oldest Quranic texts in existence are considered to be from around 675-700 currently, possibly slightly earlier, so we already know it was a fairly standardised document from within about 50 or so years of Muhammed's death.