To be fair, I can understand the opinion that we've become a bit lazy using bagged feed for convenience when most commercial pet and livestock foods are often full of fillers and slightly questionable ingredients they shouldn't really have in them (you have to be freaking nutritionist and read all the fine print when looking at these labels sometimes). I can also understand the view that as much as we're more commercially successful now,
SHOULD we be pushing dairy cows to be producing such high volumes of milk,
SHOULD we be encouraging chickens to lay higher volumes of eggs.
https://www.humanesociety.org/sites/default/files/docs/hsus-report-breeding-egg-welfiss.pdf
https://www.onegreenplanet.org/animalsandnature/how-the-dairy-industry-has-unnaturally-altered-the-life-of-cows/#:~:text=In order to ensure the,cows suffer from this ailment.
Whilst I'm not saying we should all go back to just stalking wild junglefowl in the hope that they might occasionally drop an egg in a bush every other Tuesday (works for my family though), but we have sacrificed some things for the sake of economic growth whilst in many cases, stunting, deforming or artificially accelerating the growth of livestock; we have all kinds of unnatural specimens now. Look at modern broiler chickens. They grow fast and produce a lot of meat but it's not good for them and not good for us. I'm saying this as someone who has been involved in farming for 16 years, never been far beyond the poverty line, lived in developing countries with unreliable running water/electricity let alone financial opportunities and have just seen a much beloved farm I used to work on shut down permanently...
I don't think all pellets are evil and the people that formulate them have the balance down to a tee (even if a lot of quail food is suspiciously low protein still) but I can understand wanting to supplement that with natural protein sources. Just ones that are't so high in fat. Or sugars. I guess gamebirds want the keto diet? So do dogs and cats but we still keep putting cornstarch and shit in pet food meant for obligate carnivores and everyone is diabetic or on the way these days... Might be the answer or all of us.
NOTE: Then again since we've tailored this the feed to these selectively bred birds designed for maximum production, trying to feed them a more 'traditional diet' would probably be a detriment to them. Maybe heritage breeds or junglefowl crosses would be better on that sort of diet.