Yea, that train is gonna run out of track soon. During the peak season there's not a lot of trail magic in the north and now that it's past peak season I would not expect random magic at all. Now if she's got people who support with her she might get enough help to make it.
I met some people last year who were soliciting donations through a website (you could donate by PayPal), I don't see the difference here, people are willing to give if they choose.
On the other hand a group of 5 skipping out on a hostel after a few days stay is just wrong in my opinion, either stay and pay or don't stay. This is the kind of stuff that causes hostels to fold. This behavior is by no means limited to this family, it happens everywhere on the trail. Bob Peoples told me he's had his cash box emptied at Kincora!
At this point she's gonna have to flip since they have only 8 weeks to get to Katahdin and they seem to be doing about 10 miles a day. They'll be lucky to finish by December.
Anyway just my opinion.