I’ve lost 4 chickens and two of the four were buried. The first was the Cornish cross pullet that I rescued from slaughter who passed away at 9 months of age while I was on my graduation trip and my father buried her for me. The second chicken that was buried was the only silkie pullet that lived longer than her siblings who died less than a week after I got them and I wasn’t really attached to those 2 so they went in the garbage. Most of my pets have been buried whether it was a special pet fish, a hamster, parakeets, guinea pigs, or chicken.
Everything around already knows there's chickens and knows they're edible. Predators aren't dumb. If I started having issues I'd reconsider, but it's been 4 years and daytime predator attacks are few.
Yes, I see your point, and it's a very good one. It would probably be an issue if you have enough chooks that you have more than a few die per year.