Don't get me wrong, it's a stupid limitation indeed -- but sometimes decisions like these are meant to stop users from doing stupider things :)
I'm no fan of oversimplification, but Apple's audience is everyone, not just power users. In that case, I'd prefer having advanced options surfaced to me as "advanced" so I can do what I want, but leave the simple experiences for the simple folk.
I'm no fan of oversimplification, but Apple's audience is everyone, not just power users. In that case, I'd prefer having advanced options surfaced to me as "advanced" so I can do what I want, but leave the simple experiences for the simple folk.