Because, it's Nintendo
Nintendo did not apologize or ignore; they listened. Playful jabs at current conversations (eerily close to the last IGN NVC) and admittance of shortcomings was a nice touch to the digital event. That said, the 46-minute presentation left something to be desired. A blowout of late 2014 Smash Bros. content will not be enough to whet the appetites of naysayers.
Nintendo is wise to focus and build out the Mushroom Kingdom with Captain Toad: Treasure Tracker, more Yoshi, and Amiibo. Even wiser to remind audiences where their gaming experiences started.