Still, that's a damned lame excuse. misskalloway is absolutely right in that the only reason why Vin and Yuffie didn't affear in the ending FMV was because the game's staff lacked the resources to make alternate versions.

You would think that the DC staff would even take into consideration the fact that Vin and Yuffie, if one or both of them is in your party, at the very least appears in cutscenes and fights Bizarro Sephiroth along with the others =P I guess that was asking too much.