I think he just put it out wrong.
What I believe he mean is that since switch is now both its handheld and home system it needs to sell the same as wii u + 3ds combined. But even that at best made nintendo some years only break even or even lose money.
But so he think it won't sell as much as wii u and 3ds because of smartphones and such. But we simply don't know. Years back people were saying that smartphones and tablets would kill off all traditional consoles, and while the handheld market has certainly declined l. We still have a Sony right now that sells great A Nintendo who is doing good. And a Microsoft who is doing alright.
I personally though that there wouldn't be enough room for 3 manufactures but if these sales data continue it just might for at least a long time.
Will we ever reach those infamous ps2 level numbers again.. No don't think so, but I don't think we have to
