'By this all will know (even the angels will know) that you are my disciples, if you have love among yourselves ' , quick Google shows that JWs are not known for that reason at all, I don't know anyone non JW who has ever noted that about JWs, it's always about knocking on doors and blood. I do know of individuals who are motivated by love, but as a group, that's not the case.
Love is not the identifying trate that sets them apart as wheat from weeds.