Well the OP - is not complaining that the rooster is mean to her, but to her hens. I am not sure your plan is going to work. Often times, hens attacked as described, become more timid, hide out more, eat less and the more they do that, it seems to bring on more attacks.
And I have kept bachelor pads, what I have found, is that they are a "sometimes, sort of, for a while type of arrangement." What works today, may or may not work tomorrow. I am not an advocate of cock fights, cock fights are cock fights whether they occur naturally or inspired by people. Sometimes roosters never fight, sometimes they will to the death. What to do then?
Most of us on here, are not narrow minded and old fashioned. We have had a lot of experience. We are giving advice that we have had work in our own flocks. We are trying to explain that birds can be dangerous to children, and to anyone else, if they get aggressive, which your article also states. Most of us have dealt with an aggressively mean rooster too long, before we gave up. When we removed him, we enjoyed our flocks again.
I have had a lot of roosters over the years. Some have been good, some have been very good and some have been awful. I have always killed with respect, quickly and efficiently when it was in my flocks best interest. I dearly love having a rooster in the flock, I love to watch how he interacts with my girls. Often times, I have had roosters all their lives and never touched them. Sometimes I have had roosters that the hens didn't like, that attacked me, or that threatened my grandchildren, and those were removed.
Your article also states that limited space can be a problem, but that one should re-home the bird and you limit who one can re-home to. People on here report a terrible time trying to rehome birds, and what do you do in the meanwhile but deal with a difficult bird? Cage them up in less than ideal conditions? A swift end is preferable to that.
I do not feel obligated to keep any bird that is not working out for me or my flock. Many people have limited space, and should really keep the best birds for the set up. A good life and a quick end, is pretty standard old fashioned thinking. I agree with that.
I am not an advocate of mistreating any animal. I have been in animal husbandry all of my life. I take my responsibilites seriously, and I solve for peace in the flock.
Mrs K