"What is the point of this statistic? Is there some old school moral condemnation of women lurking behind the use of this stat, as evidence of their "deceit"? "
Perhaps the point is that women are not the saints they are often portrayed to be. Perhaps the point is that men are being tricked into supporting a child that isn't theirs for 20+ years.
You simply cannot say it is the same for men and woman. No woman has ever been tricked into working to support a child that they were deceived into thinking was theirs.
And when men find out they've been deceived the courts tell them "Too bad! Keep paying child support."

I_Therefore_I_Am's comment above is correct, men have been reduced to being sperm donors and ATM's.