Although the introduction of type 72 cars to such a line was obviously service degradation, the Keihanshin Local Line was forced into this since type 51 and 70 cars were easy to use and the number of lines to which type 72 cars could be transferred was limited.
このような線区への72系の投入は明らかなサービスダウンだが、51、70系が使い勝手がいい車両であったことと、72系を転用できる路線が限られていたことから、結果として京阪神緩行線が貧乏くじを引く結果となった。