You know what? I'm glad.
i'm glad nobody can find it.
I'm glad the dataminers are raging and nobody is catching it.
Victini is reminding us of a time when we didn't have dataminers and the Internet, which would instantly give us the answer to any game question we could possibly think of.
you are now forced to explore, try new things and actually play the game to get victini instead of just having Joe tell you where to find it.
now go play the game and try to find him.