I don't disagree, but I helped edit one a few years ago. They're alarmingly difficult to write - it's a much harder audience to write for than students. You have to decide is it worth bringing in smaller studies for minutiae that may not have lasting impact on the literature just to add new information for a pretty cut and dry topic?
I hate doing them and rarely learn anything new (especially in my own practice area) but I have some respect for the process because it sucks!
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