There have been other cancer-related concerns, but most of the studies have been very small and seem to conclude that there's either no risk, or that there are actually benefits.
The dairy industry is a huge advertising and lobbying machine.
What I find particularly troubling is that people avoid soy because of non-existent evidence. But they continue to drink alcohol which has been thoroughly linked to many forms of cancers. It makes me believe that, in the final analysis, people eat what they want and only pay lip service to healt (or the environment/sustainability/animal welfare); which I'd say that things like Atkins and paleo further confirms.