And additionally each bag is a duplicate of the large sized bag in regard to labeling. When there is an open mixture, as with chex mix or trail mix which contain kosher candies and pretzles mixed with unsupervised baking/cooking, there is no hechsher on the package.
Likewise, there are lunch packages of tuna that contain kosher tuna (still in a single serving can), a packet of kosher mayo, a packet of kosher relish and unidentified wrapped and sealed crackers. These packages also do not bare a hechsher.
Many granola bar type foods or oatmeals come in multipacks that contain the nutrition panel of each of the types included in the box. Even if the OU is listed on that type of bar, the box will not contain an OU on the front. But the difference is that these brands REGULARLY POST THE OU ON THE FRONT!!! Hershey’s hides their OU in the ingredient paragraph so if someone copies the nutrition panel and pastes it onto the packaging, it will contain the full copy of what is listed there.
Maybe a more appropriate conversation would be why Hershey’s, who used to put their OU on the front but stopped when Arab countries refused to buy their products with an OU, is hiding their kashrus.