Yep, if you ask for escrow or tokens, they can always easily find another bounty manager who won't ask for either. Plenty of those here on bitcointalk that don't care much about bounty hunters as they get paid ahead in stablecoins/BTC or some other listed cryptocurrency.
Yeah that's it and that's one of the reasons for which I was not able to launch a bounty campaign yet lol. It’s very hard to get such bounty to manage. There are very few managers like that. Julerz is one of them who practice the escrow rewards most afaik.