It could be completely different sources giving information about BotW than about the Switch.
Like I said I sincerely hope she's wrong or the Switch is going to flop.
The Switch still isn't going to flop, considering they will have Skyrim, Splatoon, and 3D Mario right at launch.
Breath of the Wild coming a few months later isn't going to change that much. Because people that were planning on getting the Switch for BotW will just buy it when BotW releases.
It isn't like this is a year long delay, it's merely a few month delay, where Breath of the Wild will release the same time Splatoon released. And not only that, but having a constant stream of excellent titles instead of releasing them all at once will keep Nintendo on gaming news for a long time.
So is this necessarily the best situation in the world? No. But this won't make the Switch a flop. The Switch is still going to have some huge games at launch, and even more to come.