Forcing bounty hunters to do such a task seems extremely shady at best. I would stay far away from this project. If a project is technologically sound, and is innovating, the trade volume will come regardless.
You are very correct. If the project is confident about their capability, there's no reason to require such task to bounty hunters.
Given the task is not so difficult, yet, it is giving a bad impression towards the project.
And for those who did not comply, they will spread a lot of fud and hate because their effort was just wasted.
The dev team should have given the fair share to their bounty participants.
Bottomline, just be careful in joining bounty programs. Once you are in, you are expected to follow their rules til the end to get your reward.