I agree if this is the case but personally, I haven't heard of this happening, I could easily have missed it though.
I'm guessing once we know more about how Disney will handle entrance into the land that many of these reservations will be released. I'll admit I'm one who has an Oga's reservation booked purely for the hope that it grants us access into SWGE. If we find out there is another way to secure access; if it's not as busy as anticipated or, they officially announce boarding groups, I will probably let my Oga's go. Right now, it's my security blanket.
Guessing I'm far from alone on this!!