This is the beauty of being able to work in the flat with extrudes while in sheetmetal mode. I can optimize the punch setup by having long shear lengths and only 1 angle square punch. Of course, laser cutting doesn't have this limitation, but a lot of shops are still punching as their primary production process. If your design can tolerate these variances, this is certainly a good reason to use sheetmetal for parts that are not simply "cubical".
I still find many operations in sheetmetal limiting, but this is one thing that does provide significant freedom.
