Not really. It too doesn't require an xorg.conf, you only need to create a /usr/local/etc/X11/xorg.conf.d/driver-nvidia.conf to load the driver, that's all. In exactly the same way as the handbook shows for the intel(4) driver.
Funny, I don't have a /usr/local/etc/X11/xorg.conf.d/driver-nvidia.conf, only an /etc/X11/xorg.conf created by nvidia-xconfig. Maybe it doesn't matter where you put it. But here my X11 doesn't start without a config file for the Nvidia.