Chris, I disagree; this will change nothing. The Catholic clergy are already roughly 50% homosexual, and the proportion is probably increasing. Just as 98% of Catholic couples use contraceptives despite the unambiguous ban of Humanae Vitae, so to this ambiguous repetition of a former ambiguous statement will change nothing in the practice of accepting gays into the priesthood. 

But of course you are right, if gays were actually banned, our seminaries would be very much "emptier" than they are now.