i would interpret "optimized for video" as having sufficient bandwidth for video signal transmission ... the NTSC composite video signal is normally 6MHz wide and for most RCA cables, even the cheapest ones, can carry the video signal for short lengths

unfortunately, the cheaper RCA cables in the market are not really coaxial, instead the purported "shield" is actually a few strands of wire and helically wrapping the center conductor with lots of unshielded portions ... i believe this kind of cable will degrade the video signal over longer distance (>10 feet) and susceptible to emf interference, which could be the reason why you don't find them longer than a meter or two

however, the RCA cables supplied by manufacturers of known brands are usually true coaxial are can be trusted to provide sufficient bandwidth for video

expensive cables like monster are, imo, simply marketing hype and surely one could find lower cost true coxial cables that could perform just as well

gold connectors? tell that to the marines! they are useful only for semiconductor manufacturing