That's not it! blaming the hunter was incorrect when the project failed. But i think the problem will be with the BM and project team, because BM is the person who will be responsible for the process of bringing the project to the hunter, if the project is scam then part of the responsibility.
The campaign manager does not responsible if the project fails or become a scam project on the other days, the manager only takes responsibility for the campaign that he managed not the project unless he is a part of the teams or involved in the development of the project.
I don't blame BM, but i think they should take some of the blame here as well. With professional BMs, this issue has nothing to argue with because they provide very quality projects in this market, but i still see many BM projects fail and they often turn to the developer. So raise the issue from the outset so that there are no scam or failure projects.