The "[Activision] business guys" apparently made the call.
Call of Duty: WWII is not coming to Nintendo Switch, it looks like. Speaking to GameSpot today at E3 2017, Sledgehammer Games senior creative director Bret Robbins said the studio has "no plans" to bring the World War II shooter to Nintendo's hybrid console.
As always, plans could change, but right now it looks like Call of Duty: WWII is only being released for Xbox One, PlayStation 4, and PC. Versions for last-generation consoles have not been announced.
Call of Duty: WWII not coming to Switch is no big surprise. Sledgehammer boss Michael Condrey said on Twitter that the decision about not supporting Switch was made by the "[Activision] business guys."
The Call of Duty series has skipped Nintendo's consoles for a while now. The last installment in the shooter series to come to a Nintendo console was Call of Duty: Ghosts for the Wii U, back in 2013.