That's nice. That's not the conflict I was talking about, nor am I convinced that's the conflict the article (the actual peer-reveiewed article, not the non-authority, side show commentary in that blog Skwim linked to) was talking about.
Obviously, there is no controversy over the science (with respect to the relevant experts). There is however (and equally obviously), controversy over teaching evolution in my country. I would hardly blame any prospective high school biology teacher for being nervous about teaching information deemed controversial by their students (or worse, their parents). It takes sound pedagogy and good conflict management skills to deal with that, both of which are absent or undeveloped in the target sample population of the study (which, remember, are currently students themselves!). I'd be damned surprised if results from a study like that came out differently - even mid-career and mature teachers would understandably be concerned and frustrated about the crap they have to deal with if they happen to teach information students or parents deem controversial. It comes up in sex education as well, for example, or can come up when history classes touch on the topic of race.