There's no record of customers being formally offered that capability so it is far more likely that it was found impractical. If I had to guess I would surmise that if you stacked and staggered two weapons in the outer bays, a failure of one to launch would have fouled the second.
As for the EO-DAS issue, this has been asked and answered many times in this thread. But the disgusting troll's MO is to keep repeating the same points, rather like a whiny two-year-old answering everything with "Whyyyy?" until he is spanked and sent to bed.