Who knows what the hell is going on here... My guess is maybe they had the wrong bracket, or the alternator + bracket was pulled out of a different vehicle. For whatever reason, the bracket attached to the alternator is attached to an L channel, which is then attached to the engine. If those bolt spacings line up I don't know why I don't just move the whole thing down and back the ~1".
My oil pan was also either painted blue at some point recently, or swapped in from another vehicle. Obviously I have a leaky gasket or two as well.