Lightning does strike twice, and by lightning we mean botched cover art. The Okami Wii box cover wasn't the only victim of the IGN watermark, as it turns out the BradyGames strategy guide also proudly displays the blemish. The automatic reaction to this information would be, "Well, duh! They got the cover from Capcom. So, of course, it'll be there too." Funny thing: The watermark is actually in a different spot.
However the error occurred is up for speculation. We just hope this little fiasco urges publishers to supply its designers with the assets to do their job properly. Or, designers should feel free to take assets from us with the Joystiq watermark on them. We totally give permission!