I work in the web development industry, and I know about server load issues. Basically, you can see an exponential increase in traffic even from a moderate level of media and blogger coverage. One of my clients is a major financial services firm and we have had a few experiences where a national commercial ran and just melted the servers down. Building highly scalable systems is highly challenging.
That's why I'd never trust anything via the Internet for life safety. Anything public is highly susceptible to spike loading by accident - or in the case of a DDOS attack, by malice.
The FINDMESPOT servers could be deliberately targeted for such an attack, and there's not much that can be done. The same can not be said for networks that are not public.