Then that means the supporters from Smashboards will continue raving about how the Wii U is doomed and SSB4 is worse than Brawl due to the absence of popular choices (aside from Mega Man, Little Mac, and potentially Palutena), which is something that concerns me. Chronobound, a well-respected Smash speculator, has already made this statement the moment Ridley was hinted to be a boss character back in April 8 at the Ridley thread.
As for K. Rool not being an All-Star, is it due to his lack of appearances in main DK games since the original DKC trilogy and DK64? By that logic, Ganondorf isn't an All-Star either due to his absence in other main Zelda titles, such as Majora's Mask, Minish Cap, and Spirit Tracks, and he hasn't appeared in recent Zelda games, not counting remakes, since Twilight Princess up until his iconic alter ego made an appearance in A Link Between Worlds.