That paper isn't about the effectiveness of condoms; it's about "Interventions to increase effective condom use...condom design, access to condoms, condom use b

That paper isn't about the effectiveness of condoms; it's about "Interventions to increase effective condom use...condom design, access to condoms, condom use behaviours and condom-related legislation." In other words, it's a study about the effectiveness of policies, not the condoms themselves.