Door to door salesman are virtually no longer used at all by double glazing salesman, insurance salesman, satellite TV salesman or men selling encyclopaedias and vacuum cleaners.
They have become a thing of the past for a very good reason. No-one is home to buy their products. WT had no financial commitment to its salespersons so until recently never had to accept it was a fruitless search for finding new "buyers", plus it kept the sales peope it already had busy.
Unfortunately for them as more and more people purchase items on-line with pages of reviews available and they are able to make a much better and more informed choice.
Watchtower realised this fact and demonised the internet for so long because they wanted to avoid current members from learning what an insidious pack of lies they were spinning.
Even if some-one is contacted at the door now most would immediately "search" jehovah's Witnesses and an array of possible anti- JW websites to peruse would pop up including wiki which has a criticism section. That would be my first stop if some-one tried to recruit me now.
People evolve and selling practices have to as well. I think this is their first attempt at evolving the society into a more attractive package.