WPT Maryland Live!: Ruberto banks title #2; Pillai; Ausmus & Givens close

The World Poker Tour bang out another champion, the third in a week, as Tony Ruberto wins title number two at WPT Maryland Live! 

Why is it easier to win a World Poker Tour (WPT) Main Event title than a PokerStars European Poker Tour (EPT) title?

Are the European players of a higher calibre?

Variance?