Actually reading the story paints a different picture.
The knock on McDonald's nuggets:
Oh, dear me, they contain spices as well as chicken!
It’s a clickbait faux-scandal. Soy, seaweed, etc. have been used to add flavor to food for millennia. The highbrow fine-dining term is “umami”. As for spices, remember KFC’s ancient ad slogan, “11 herbs and spices” (they are wa-a-a-a-ayyyy to salty for my taste, but …)?
Anyway, breadings, coatings, and ground meats are going to have all kinds of ingredients chosen to increase flavor, and that really is hardly news. Anybody remember where the gelling agent agar-agar comes from?