I'm not an expert on those, but the info in that other thread appears correct; the one and two star cards were distributed at the same time and in roughly the same quantity, and the number of stars seems to have been an internal reference used in manufacturing the cards, not something that was intended to be of significance to or even noticed by collectors. That said, some collectors are obsessive and focus on such details, and Star Wars seems to attract that type of scrutiny for some reason. A comment or trivia entry in the set description noting one and two star versions exist for all cards might be useful for future reference. Good catch.
It reminds me of the stars that Playboy used to put on the cover, a minor remnant of a more civilized age...
http://www.snopes.com/risque/celebrities/hefner.asp