Bioware/EA/LucasArts never advertised SGR in SWTOR.
SGR adds nothing to the story either.
SGR is not missing.
All we are saying is that there is some more important things that need to be added and fixed before SGR is added.
Ah, but at the same time, before this game went live, they did come out and say that they did have plans for SGRA's to be added Post-Launch
Not yet, but in the future it might.
Technically, yes SGR's are missing
And most of what people list as being "more important" then the inclusions of SGRA's tend to not have anything to do with the Departments involved in the creation of SGRA's.