He will never be a vulture because he will not schedule tons of 250/500 tournaments with weak fields to inflate his ranking. Nor will he ever be a Slamless pusher because he's not a pusher
He played 6 250s this year, including Buenos Aires and Acapulco (which are vulture tournaments because Ferrer won them). He also played Kuala Lumpur, where Ferrer was the highest seed.
Of course, if you like a player it's easy to look past these little things called 'facts'.