On the contrary, it is complete since it does not need a setup()
and loop()
Just try building the sample as is.
I've also posted a way to reuse the SoftAP function to interact with the devices
If you then add
void setup() {
WiFi.listen();
}
The device will start in SoftAP Mode and you can interact with it right away on 192.168.0.1/<whateverYourPage.html>/