@Edent Not looking good for them. Let's hope the fad fizzles out.
Also perhaps worth a link to @cybergibbons's blog with some good examples!
https://cybergibbons.com/security-2/why-what3words-is-not-suitable-for-safety-critical-applications/
I thought I'd read somewhere in the past about one pair of W3W addresses that were either side of Loch Ness at one point but I can't find that reference now.