Yup and Nope (and clarification requested: did mandatory regional legislatures get enacted already? if so, my vote is still "nope"; I think the people of the regions should be able to choose, or at worst the regional legislators should be able to choose whoever they wish, not just legislators)
To clarify, regional legislatures are not mandated by this Constitution. This clause would, however, pressure the regions to create legislatures. It would also ensure that a citizen had won a regional office before reaching federal office. I saw it is a win-win maneuver (from my perspective
).