Weird system. 5 at large seats, and 16 seats from MMDs of 2 members each?
Yeah, it is, but it's not entirely dissimilar to the current setup.
Doesn't seem like there's much point in having partisan elections. It would be more of a one-party state than South Carolina in the 1930s.
Believe it or not, one of the current at-large seats was held by a Republican as recently as 2008 (albeit a socially liberal Republican, but a Republican nonetheless). There are also currently 2 Independents elected from the at-large seats. It's a possible that as a state, it could develop a unique party system, although with the Democratic Party still dominant.