1. They have all the freedom of doing any how with your rewards
2. They can change certain rules that aren't reasonable, just because it's their project and they are handling the distribution they are free to do some bad things
3. Bounty Managers are very very important, you can get them nailed for not facing the team to force them to do distribution but you can't fight the team yourself
All your points are leading to interpreted as possible misuse/misbehave than what they promise by the times of beginning of bounty program. It seems if we want to be staying under safer hands then it must be possible only when we choose bounties which are managed by highly reputed managers of this forum. Otherwise, getting big disappointment at the end of bounties may become inevitable.