I think that the cherry and grape tomatoes are OK not because of their size ~ it's just that the relatively-few areas where they are grown commercially are not on the list of localities where the contamination might have occurred.

SRS: "BLT season," huh? Are you familiar with the "kitchen sink sandwich"? Big juicy slices of fresh-from-the-garden tomatoes on white bread, with nothing else on 'em except plenty of mayonnaise. So named because you have to eat 'em over the sink.