No I doubt he's going to get anything out of it. It's desperation.
Ultimately he's going to have to prove that 2 or more teams discussed an agreement to not sign him before anyone is going to go make those teams answer for anything.
I really strongly doubt that 2 or more teams got together to do that.
Ultimately each of the 32 teams individually decided that the potential fan reaction was not worth what Kap could provide them in terms of talent.
There just isn't positives for the teams to collude on this. There is no motive for the teams to do so, nothing to be gained but everything to be lost.
Think about it, you are a team owner or GM. You know you arn't gonna be signing Kap. What's the point in talking with other teams about it? I mean do you hate him so much that you are gonna risk EVERYTHING in an attempt to try and make sure another team doesn't sign him? Even then it's not like you can make another team do what you say.
I mean if he has the evidence I would love to see it. But right now I just don't buy it. There just isn't any point or value in teams talking with one another about not signing him.