Agreed. I’ve been involved with some reasonably large WiFi deployments in businesses and schools in the past as well as for events. A lot of people seem to think that WiFi is easy to do. Just deploy a couple of access points because that is what works at home and they don’t want to pay to have it done properly. It generally does need a lot more access points (and decent quality access points) to do it properly taking in to account the number of clients, bandwidth requirements and attenuation from people and various materials. Thought also needs to be given to location of the APs and frequency planning to avoid overlaps.