I think everybody needs to take a :chill: before we turn this Internet Drama into a banhammerfest.
First, the story's coming from Kotaku (well Famitsu but its getting interpreted by Kotaku) so don't forget to take your grain of salt. Second who the hell cares about SSE? The cutscenes didn't really add that much, and the adventure was kind of a resource hog for the rest of the single player content, plus Adventure Mode wasn't too bad back in the day and served as a better introduction to the gameplay/characters. And finally, this could be a matter of bad semantics. As in, the statement is probably directed more towards the people on the Brawl dev team for leaking the info rather than the Internet at large.
Seriously, you guys are getting all much ado about nothin'. Its not like they're turning this into a boobalicious CCG or freemium iOS warez, or getting abandoned outright to focus more on a failing arcade game that's half automobile infomercial, the continuing misadventures of a salty fashionesta and her magical wardrobe, or another attempt at making yet another MMO to compete with all the other MMOs they've made.