Well don't forget that Peter David is also known for his Hulk stories and his episodes of Babylon 5.
His Supergirl series is under-appreciated. It was pretty daring, and terrifically well structured.
Tossed aside like chaff when DC decided they wanted to bring back the old, standard, powerful SG. Yet another sad moment in a litany of them, from decades of being a fan of corporately-owned pop art.