Because I don't find flat statements to the effect that "this is the way to do it" helpful. Dogmatism gets in the way of thinking.
Originally Posted by spiralcity
In this context, I shoot small objects using Nikons with small flashes attached to brackets that mount on the lens' filter threads. And I shoot small objects using 2x3 Graphics with large flashes (Vivitar 283s + VP1) on a huge bracket attached to the camera body. Also with small flashes on a bracket that goes between lens (front-mounted) and shutter. And with a hand-held large flash.
There are many solutions to the problem. Pushing just one isn't as helpful as it seems.