I'm not going to comment on each particular question, because I'm not on the vaad Rabbonim and I wasn't asked to be a spokesperson.
I'll just point out something, and for context, I'll compare it to an opposite case. I know of a campaign that was opened recently on TCF "on behalf of the family" where the raizer wrote a nice sob story (happened to be true), and raised close to 100 grand. This campaign was NOT verified and wasn't marked so. Someone reached out to the family to know if it's legit, and was told that the one who opened the campaign is taking a 45% commission plus advertising costs!!!
Why the vulnerable family agreed to deal with him, is a story for itself. Pretty much the man raised much of the money and then let the family know, from what I understand. (At that point, the family has a choice to take $50k or leave it)
Now let's compare to this campaign which has over 400 people raising (much more - because not everyone has their own page), and not one of these raizers are making a dime. The organizers aren't either taking a commission. (Even Charidy is waiving their commission.) I know every one of them very very well. I also know all the Rabbonim in charge. Why would so many people put so much energy into a cause that isn't so important, while not making any money for their efforts?! And only a tiny percentage of the raizers were present at the collapse. The funds were collected almost entirely by Americans. But yet there's so much skepticism....