This is not entirely true. The online masters does not have all courses available. The on-campus masters has a much larger breadth of courses one can choose from.
All things considered, for $7000, the value is phenomenal.
When OP says it's "exactly the same degree" I read that to mean that the school gives you exactly the same piece of paper at the end, as opposed to giving you a piece of paper that has the word "online" on it. In other words, I read it as meaning that there's no way for an employer to know whether you completed the degree in person or online short of asking you directly.
I think GT is just understanding all the potential they have in this program. There are a lot entrepreneurial resources that are only catering to on campus students and they realizing that the OMSCS students want to take these electives and be apart of these programs.