But they were a mistake. A mishap by the manufacturer. Combine that with the fact that those years (sans 1985/86) were among the worst in the SAC era and that the royal blues look much better (and were the actual team colors), it doesn't make much sense to me to keep using them.
I'm willing to bet if a poll of KINGS fans was taken, the royal blues would get more votes than those powder blues. Isn't the point of these alternate jerseys to drum up more sales? Isn't it to give the fans what they want and/or to drum up nostalgia for the good 'ole days?
Admittedly, the franchise wasn't much better during the royal blue days (except we had Mitch!!) but at least those were the true colors of the team.
Also, is there some reason they can't use the white home jersey's from that era instead of the road unis? I think most KINGS fans liked those.....