The series ran for a long time, but was a low seller for most of that time. The character hasn't appeared in many comics since then, hasn't appeared in movies or TV shows, hasn't had any major appearances in video games (just character skins) and hasn't had much merchandise.
Spider-Girl is not one of Marvel's most successful creations.
You can like or dislike whatever you want. If a comic editor gives an assignment to a writer you dislike, that doesn't mean the editor is unintelligent.