or don't you think they should officially have their own campaign to gain more trust and reputation here?
I would suggest a review campaign for them so they can get people check their activities and give feedback on possible ways for them to improve.
If they want to have a review campaign, what will the participants in the campaign be reviewing? Will the campaign be to review the software and algorithm with which they recover the wallets? These are personal intellectual properties to them that they will not put out to the public else they will go out of business. So, a review campaign is out of the picture and a signature campaign would have been a better option.