Because the fans eat anything Miyamoto pretty much and nearly ignore everything else. They don't care for Batman: AA. Besides, just release some ok games throughout the year, show 1 concept art of Link posing at an E3 and you have them sold. Oh same works using Mario btw :p.
Make games, not war (that goes for ridiculous fanboys)
I may be the next Maelstorm or not, you be the judge http://videogamesgrow.blogspot.com/ hopefully I can be more of an asset than a fanboy to VGC hehe.