It doesn't even need that; it could live on just fine on indies, exclusives like Octopath and Astral Chain, ports of older games, and first party. AAA blockbusters have never been the system's selling point so losing what few it has won't matter.
Of course. But having these too is always a good bonus. It helps if people don't have to buy another system for some games they love, but like you said, they're hardly a selling point.
The Nintendo eShop rating Thread: http://gamrconnect.vgchartz.com/thread.php?id=237454