It should be fine! I have seen that man’s content and he does feed japanese beetles to his hens very often and if not daily. They are great sources of protein :)
It looks like rooster damage and/or damage by being picked on by the other hens. How many roosters do you have and how many hens do you have? How much run space do you have?
Thank you for the reassurance haha! Her crest is pretty nice looking and tight and I am glad she looks good as she is my only gold chick. Also, does this chamois’s crest look good as well? I am trying to see which chicks to keep and maybe breed if space and time allows. His spangles so far lean...