I mean, aphids on lettuce- is normal, it happens. Would I be happy if they were on something and I didn't see it and ate it? no.
But there is no way in hell eating a few aphids caused er level/ambulance calling level food poisoning.
Unless someone had a rare, anaphylactic allergy reaction, a few bugs won't hurt the average human.
I'm sure, if this happened and was pointed out to Disney, they would have bent over backward to make it up to them.
I'm also wondering if they saw one leaf, and assumed they all had them, and .. well, overreacted .
It's not like these were maggots, or roaches (which can absolutely be a sign of bad food handling practices on a larger scale), they were aphids. Anyone who has ever had a garden will tell you, those suckers stick like glue- even a full wash and spin might not remove them.