yes, the reputation of the bounty manager who's handling the campaign won't matter anymore as they really have no control over how the project will end up. They are just hired to manage the campaign. I think if you're looking for a good ICO, you search up who are the people behind the project if they are legit and if the project really offers a functional product.
most of the managers probably have nothing to do with the project. but some include campaign managers into the promotion team. as you said, the people who helped the project grow are the big guys for now. Now it seems that without the help and cooperation of big-name people or platforms it will be difficult for a new project to find a good market.