Fascinating stuff so I think its on-topic ;-)
"The Court concludes that this exception covers unsecured wi-fi
communications, so that it is entirely lawful to snoop
in on someone else's
private communications over an unsecured wireless network:"
I think its a bit emotive to suggest that someone is "snooping" on
"private" communications if those communications are broadcast in the
clear. If someone has a flawed perception of their security then
legislation that reinforces that flawed perception is doing nobody any
favours.