There is probably a correlation here besides genetics. For example, I am brand new to chicken keeping. I bought from a hatchery as I had no idea what heritage breeds were or where to find them. So now I have a production Red. Couple that with my lack of experience with raising roosters would lead to a seemingly higher chance my bird could end up agressive due to my lack of experience or even jumping to a conclusion that a bird is agressive when a experienced chicken owner wouldn't.
I haven't had any issues but hopefully you can see what I mean. Basically less experienced first time chicken keepers are more likely to buy from a hatchery, and also have less knowledge on handiling roosters, which means your production and hatchery birds are most often owned by the new chicken keeper, so it possible this leads you to hear more stories of production bird aggression. Someone with loads of experience and know how is probably buying heritage birds or private breeder birds, not production hatchery birds. And they know how to raise a rooster right.
I know genetics do play a large role but I like thinking outside the box.