I think this does need thinking through somewhat.
There is a difference between reducing the rate of infection and prevention.
If we give people the idea that sex with a circumcised male is less risky than with an intact male there is the chance that a good many couples will take that as meaning they don't have to wear a condom.
It may well be the case that increasing the number of circumcised males simply reduces condom use and the same incidence rates will re-occur eventually.
Circumcision Issues and
Circumcision Information presents the reasons why some monogamous couples may prefer not to become circumcised.
I am not against monogamous sex but I feel promiscuous unprotected sex is responsible for the increase in SDT's in the UK. Anything which encourages folk to think that the risks of unprotected sex are reduced may also encourage more risk taking activity.