Uh, "We never expected to sell the Nintendo Switch to sell this much"?
Nintendo Reportedly Targeting 20 Million NX Units Shipped for 2016: http://www.ign.com/articles/2015/12/01/nintendo-reportedly-targeting-20-million-nx-units-shipped-for-2016
Kimishima: Switch Can Sell as Well as Wii: http://www.vgchartz.com/article/268050/kimishima-switch-can-sell-as-well-as-wii/