Indeed. Same line of argument as to why there's no need for more gun control in America. 325 million people, only a few murdered by guns each year: 0.003%
"PiServer is quite a clever piece of software, and it’ll be covered in more detail in another blog post in December" - https://www.raspberrypi.org/blog/stretc ... an-update/
For SSDP the app would send out a multicast 'M-SEARCH' request asking all devices, or all devices of a certain type, to respond, wait for the responses, then filter those to only display what it wants to display.