User blog comment:Wachowman/Who Will Survive SSB5?/@comment-6604133-20141017214713/@comment-25317463-20141018182716

but like Alex said, Sakurai did say that WFT is not a joke, and he also said that every character is unique in their own way and they would not add a character without tsking them seriously or else the man hours would be wasted.

Sakurai never said there are joke characters. (except Nester, notice how he is NOT in the gamr, but was used as an April Fools joke. That is as close to a joke character as we'll get)