I'll give my opinions. We all have our own preferences. Some people want light meat, others prefer dark. Some like fried chicken, some prefer grilled or baked. We may have a preference for a certain texture or flavor. Our personal preferences play a part in this.
Some of us have more delicate senses than others. My sister-in-law can replicate a sauce she gets in a restaurant. She can come up with ingredients, proportions, and preparation methods by taste, smell, and appearance. I would not have a prayer doing that. Some of us may be more sensitive than others in taste, texture, etc. If I can't tell the difference it won't matter to me but it may matter a lot to someone else.
Some people like to be trendy. Influencers strongly influence them. "Oh, that style is so last week. This is what you have to do this week or you are out of date". Right now olive colored eggs seem to be trendy. Next year it might be mint green. Who knows. Many decades ago a Home Ec teacher told my wife that the secret to a good pie is a flaky crust. To this day she worries more about the crust being flaky than about the filling.
if that really makes the difference why not finish all chickens and turkeys that way?
My suggestion to something like this is to try it yourself and see if it makes a difference to you. It doesn't matter what I think about it, it's what you think about it that matters to you. I don't know if it will make any difference to you or not or if the effort is worth it to you.
I have not raised Bresse, some people on this forum do. Please correct me if I'm wrong, but one reason you are supposed to use Bresse is they have a different texture than other breeds. On my opinion the age you butcher them and the sex has a lot of influence on the texture you get but the Bresse are supposed to be finer textured than other breeds.