Joanna:
I think the "sisters" would have felt a LOT more violated if they had been invited into this home and had been secretly videotaped, and then found out that the homeowners put the tape up on a website. Think about how many places have security cameras - banks, stores, ATMs, malls, drive thrus, etc etc - and we don't give a second thought to it.
I agree with James - the homeowners had likely been called on many times and had asked repeatedly to be left alone, without any results. JWs in general are very complacent about people being "Not Interested" and will call over and over, and the only way a householder will stand out in their minds is when they do something really drastic, like the old fellow I called on when I was 10 years old who threatened to shoot me with a rifle if I ever showed up at his house again. Everyone else kind of just blended together as "Not Interesteds". Don't forget that some JWs - pioneers especially - have personal territory that gets covered so frequently because it is convenient for the pioneers - it's usually close to home (within walking distance, but not their own street!) and it never gets turned into the territory servant because the pioneer doesn't want to lose their stomping grounds to someone else. Those territories are worked, and worked, and worked, while others seldom get signed out because they are rural or inconvenient (no donut shops close by ).
The homeowners in this instance are going to be black-listed, without a doubt. The story is going to be spread all over the KH and the circuit, and probably embellished. Watch for a future JW-UL!! Dubs will all know exactly which house it happened in, and will avoid it like the plague for a long, long time. Mission accomplished for the householders.
Love, Scully