Saying the problem is the player is only half-right, many players naturally look for what will give them the best bang-for their buck.
Blue Stars are a top tier patrol choice, in a game were swarms are very effective, bar a few races, so naturally a player seeking an effiecient and powerful fleet will notice the power of the Blue Stars.
Considering how much fire they can avoid (if its a none AP weapon 50% of the attacks will hit, and 2/3 of them will be dodged, then that damage is halved-rounded down.) It is obvious why some people think they are way over the top. I would never field 20 of them, ever, but the option is still there, and the chances of winning against such a specialized fleet is slim, unless you have the direct counter for it.
Skin-Dancing is actually rather ineffiecient, as it gets Blue Stars killed faster then anything, they have a 50% chance at failure after all.