I think I quite agree with you, the project team needs to have a strong marketing team and also need to create crypto invests that will attract investors but that being said,bounty hunters play very important role in publicising the project,most crypto investors get to see these projects and the hype will attract them to making research. Bounty hunters are also helpful.
Honestly, if the project had a great marketing team, they wouldn't need to have bounty. And their projects will surely get noticed by their projects in cooperation with major exchanges and investors. Only weak and unqualified projects do bounty to attract investors here, which is why we see very few successful projects in 2019 and this year.