The spread of Cardinals throughout the world, as it is now, reflects the decline of Western Civ. as holding hegemony over church officialdom and the Church's intellectual life. 

It also portends  a more conservative Church. Non-Western Bishops and Cardinals tend to be more conservative than their Western counterparts.  Perhaps the West has lost its hegemony for good reason. Christ is the head of His church  and he is phasing out the Liberalism represented by  European and American  Bishops. As the Influence of the west declines and other Bishops from other parts of the world increase in number and influence, we will find a more traditionalist and conservative church. 

I always knew Christ would figure out a way to rid the church of all of the liberal, unorthodox non-sense that has been such a powerful force in the world and the church since VAT II. Praise be Jesus.