Open Records Requests in Texas are to provide public information to the public that requests the information. The government is not supposed to produce reports, interpret open records or inquire as to why the information is being requested. The custodian of the information is only to provide the information requested within the scope of the request. Does that make sense?
If it heads to the AG's office for review that office will really only decide on the merits of whether or not the redacted information cannot be released. The reasons are many for redaction or not releasing information.
I have been in quite a few AG decisions for Open Records Requests that I filed. The governmental entity withheld, excluded and hid information from my requests. The AG's office was slightly helpful in obtaining the hidden documents which involved the cover up of a crime by the governmental entity employees falsifying records. I nailed them cold. Even made the news.
The AG's office was really not interested in pursuing the issue. They were really only interested if I was given the full set of documents I requested as that would be a violation of my civil rights. For them, the coverup was more of an interesting criminal matter than government employees falsifying reports. They were not interested in interpretation of the data as it was outside the scope of the requirements of the Open Records Request guidelines.