Very, very interesting question.
Now, Majahal first tryed to "ressurect" Karin using alchemy. When that failed, he tried to attach other townsgirls souls to dolls.
FMA contradicts itself alot (ex: homunculus is a doll to the whole human transmutaion thing). One thing you can do is just ignore it. This episode is so irrelevent to the plot it's not even funny.
Second, my theory: Majahal was trying to ressurect Karin and nobody else, but Karin was alive, thus it failed from the start and no humonculus was born.
Third, spoiler (don't know how to make the box)
Dante didn't nessesarily know Majahal or his love Karin, she knew about or made all the others and thus fed them the "red stones". Maybe Dante had no idea that Karin existed, and the homunculus withered until it was no more.
Wrath: ...I'm Wrath
Hey! Sorry to whoever i stole this avy from. I've been on so many FMA boards and i'm not sure which one i got it from so if it's from this one and you have a problem with me using it then contact me and ill get rid of it.