Thats BSnothing
I know some bodybuilders avoid direct ab work because it makes your midsection wider, and bodybuilding is all about keeping the waist slim to maximize that V shape.
Some people need bigger raviolis, only way to grow that is direct work. Waist size is pretty much determined by genetics anyway.... if u have big Trina hips it dont matter what u do. I thank God daily for being a narrow waist nikka