Having just gotten back into LEGO this year, I noticed that the flags in my new sets are mirrored from all the flags I used to have. On the left is a green flag from 4162 FreeStyle Multibox from 1995, and on the right is a red flag from 10404 Ocean's Bottom from this year — notice that they flow in opposite directions:
According to BrickLink, this change was made in 2008, and the original mold stopped appearing in sets in 2010.
What was the reason for this change?