We fans don't think about time when we see roster, and that is bad on us
But even if we did it would still be like Why did they waste a year making Palutena and not Ridley, he would take less time
Which ultimately means that someone will always be upset(Especially since Sakurai trolls people). Which brings me to my first point. We don't know how much time they will spend on a character so Sakurai's interviews are the only thing that we get for insight and the fact that he goes against what he says(No Mii/Villager) and contradicts himself(Rosalina is popular so she is in but Mewtwo, easy & popular isn't)makes things worse.
Haven't you ever changed your mind regarding the same subject?
As for the rest of your comment... I'm not even bother to try to argue with you anymore.
Not worth my time. I'm sick of the "Why no Ridley/Mewtwo/K.Rool/whatever character" mentality.
I'm just worn out of seeing the same crap every single day, so I'll be simple: no matter what characters are picked in a crossover, people will always complain. Everyone has their own idea of a good roster.
It's impossible to satisfy everyone. All newcomers in this game except Wii Fit Trainer had their fans before their inclusion. By logic, by cutting one of those characters for another character, you'd be satisfying other fans at the expense of another bunch of fans. See where I'm going?