'NX sucks' mainly implies that it doesn't have high quality games. So it's kinda, in a way this circular idea of, why do people want NX games? What if it doesn't have any games? There are other ways it could suck. I won't buy it if it's digital only or something. People operate on the assumption that it will be a reasonable system.
Anyway, while no one has the system yet, I think most of the people wanting games to go to it are already committed to owning one. They don't own it, but they might as well.
Me personally, I like the idea of higher profile new games going to the new system. A, because it gives me a cooler reason for a shiny new toy, and B because it makes it that much more likely for the new system to get a strong start and have support over its lifecycle.