Nope.
Guests and potential Guests who requested the planning video in 2007 should EXPECT the 2007 video and information. A reasonable person consider that there MIGHT be 2008 changes to the 2007 information provided.
Absolutely not true. If you request a planning video toward the end of a year (September in this case) that has information that will not be valid for the next year, the CM should have made it clear that changes to the DDP were about to be made....and changes that were NOT in the favor of the guest. Many guests (if not most) do not plan a trip with a couple of months as a time frame and it is WDW's responsibility to be aware of that potential and to act accordingly.
Wild guess but... most likely they sent you the 2007 video because the 2008 video did not exist at the time you requested one. And since you got A planning video, it would be your (any traveler's) responsibility to request updated information, not the provider's responsibility to automatically provide one.
Again, a planning video should be current to ANY time frame in which a patron could book OR should have included a written sheet BOLDLY explaining changes in the DDP. The OP called in SEPTEMBER and it's more than reasonable to suggest that she would be visiting in 2008. Also, when she booked in January, AND MENTIONED THAT SHE HAD RECEIVED A VIDEO IN 2007, the CM should have made her aware of DDP changes. The CMs' jobs are to be proactive and to INFORM, not to merely book reservations.
Quite frankly, too many people on these boards think that WDW can do no wrong and the customer must absorb all mistakes and happily accept sub-par customer service. While I do not believe this customer deserves any compensation at all, I do believe that this is another example of WDW shoddy customer service. I know all too many people who have gone to WDW and have not come back worshipping the mouse because of the same sort of problems the OP brought to this forum. WDW relies on more than just fanatics to support their operations. They are not servicing or capturing an important part of their customer base. The CMs booking reservations are the front line in this operation and to mislead and misinform, intentional or not, is not a hallmark of a well-run business.