In the end, removing 1.30 was the right decision. It really should be up to the user what mode to operate the wireless router in; for every reason AWDL said in conjunction with my feelings on the matter.
Like I said in my original post, I personally only use G & N mode since I have a G laptop, a G iPod, and a N laptop. I doubt i'll ever enable B. Despite the fact I don't use it, I still appreciate D-Link for not making that decision for their users.