It would not affect the profile but I'm not sure how the yields would be. What's the point of growing 15% CBD if it gets seeded by feral hemp and you get a 10% yield instead? It is less yield but it doesn't make your product unsellable. That's what the THC side complains about having product that they can't sell due to pollination and I imagine if a CBD farmer had their yield dip 5% per acre they would complain as well. I don't know numbers of yield of pollinated vs yield not pollinated but I'm willing to assume that it does affect it in a significant way.