I think it just depends on how one defines projects. Projects because their rankings/ratings are lower than their peers? Or because of their tangible traits and skillsets? For example, I don't know what is a project about Bradshaw. He's got great speed and is bigger than say, Tyler Morris. If Tyler wasn't out of IL and tied to Boom, I'd take Bradshaw over him everyday.
Mike Frank had a good breakdown of the WR board. In general, I think this is just a deep WR class and some of it hasn't been fettered out yet due to Covid. Throw ratings/rankings aside and a lot of these guys are very similar.
With all that said, I do believe Walker is because he just has that much physical development in front of him. But so does Tobias Meriweather. And, Tyler Morris is 175 so he likely does as well.