A pendant box on a cord must have thread hubs, 314.23(H)(1).

If flexible cord pendants are so bad why do so many places in the code allow them?
210.50(A)
314.23(H)(1)
314.25(C)
336.10(7)
368.56(B)
400.7(A)(1)
400.8(4) exception

This discussion sounds too much like "I don't want to see it done that way, so I will look only at my favorite article and not the entire code book".