There is NO doubt that GT was using different standards to achieve certain student body populations that they desired....specifically more women, and more blacks. Those groups got preferential treatment in the Admissions process. Just as with Harvard, universities today see their role as being engines of social change to "help disadvantaged groups" even the playing field.
Like it or not, that is what GT has been doing. Note that they do understand this is controversial and they do their best to obscure this. They clothe their process in mystery and claim there are no hard and fast tules for acceptance or rejection but they look at the "whole person". This look at the "whole person" allows the Admissions personnel to introduce their own standards into the process without being open and transparent about it. GT knows that to be open and transparent will result in bad PR, just as Harvard understands it, and may leave them open to lawsuits of practicing discrimination, so they are VERY careful not to give and fodder to feed that.
All you really have to do is compare the relative scores of accepted freshmen by category and you will see the disparities. I am not even sure that GT releases that data as it makes their process a bit too obvious, but talk to enough people, hear their tales and you will see the pattern. I had a daughter who benefitted from the process, so I am quietly happy about it in my own selfish way (forgive me). Not saying I agree with what GT is doing, just stating the process as it is.