It wasn't just poorly written, it was pure FUD bullshit.
We don't yet know all of the ways that allergies are "activated" but we've yet to record an antibiotic allergy developed from consuming meat. Antibiotics get metabolized by the organism they are given to, they don't get magical protection from oxidation or other chemical processes, and they sure as hell can't survive the insane heat meant to kill all living organism on it when it is cooked (especially at McDonalds).
We don't yet know all of the ways that allergies are "activated" but we've yet to record an antibiotic allergy developed from consuming meat. Antibiotics get metabolized by the organism they are given to, they don't get magical protection from oxidation or other chemical processes, and they sure as hell can't survive the insane heat meant to kill all living organism on it when it is cooked (especially at McDonalds).