Could this be the solution to the Arching “problem”? I mean obviously this doesnt fix the arch but does help the lengthen the ROM which is why people get so upset about the Arch. And I dont see a reliable way to enforce lesser bench arches.
I personally dont think they should change anything regarding the contortionist benchers. Some people can Arch, some can Sumo some have Trex arms. We all have gifts and curses to work with.