BBM 'feel unappreciated and hurt' That is on them then. This group was not invited there, they took it upon themselves to do this and they may be the reason that Jeremy and Debbie took their family out of the house for awhile.
Jeremy and Debbie don't owe these people an explanation; Mr Irwin has spoken with them and even comforted Edith when she had her meltdown on Lisa's birthday vigil. Mr Irwin is the one whose granddaughter is missing, he should not have to comfort anyone during a vigil. I have to say what I have seen of Mr Irwin he is a very NICE man and is acting as the patriarch of this family, as he should. His son and his son's woman are hurting; why should they have to acquiesce to the whims of a group standing on their lawn?
We know for a fact that Debbie's inlaws,sean's[?] parents, aren't badmouthing her. Jeremy's parents aren't either. They know Debbie and are standing by her. Mr Irwin is taking the load off his family's shoulder and for that I commend him. For these 'prayers' to have to hear anything directly from Debbie/Jeremy shows that they do not have compassion, they want recognition. Well they can all stand in a circle, do a quarter turn and pat each other on the back....someplace else, not on the front yard at N Lister.
IF these people/prayers/petitioners were SO concerned about Lisa, they would not bring their drama to the table.
EDIT TO ADD:
When my cousin was murdered, it was a case that made national news because of the number of people murdered, my auntie was not subjected to dealing with media/vigils/curious people. My uncles and my Dad would not allow that, as Southern men, they felt it was their duty to protect my auntie and my other cousins. That is what family does and that is IMHO what Mr Irwin is doing for his family.