Even if the project escrowed their bounty rewards so that the bounty hunters will receive it at the end of the campaign but the project is not in good condition in terms of achieving its goals, numbers of supports, etc.
that might be an advantage but no team will surely make this kind of deal.
They will always stick out on giving those token of theirs as a reward or pay for the task that had been given.Escrowing funds is good but you cant guarantee that
those coins will really have value.
As others mentioned or said that it is much better if we do engage on campaigns that pays out on bitcoin.