No, I don’t read the ingredients on any labels but, and I assume this confirms that you were speaking without having looked at the package, hershey’s puts their OU in the ingredients paragraph. If you want to see an OU, you need to find the ingredients and check the last or last two tiny characters in the tiny paragraph. If you don’t know to look there, you wont know there is any hechsher at all (which would happen to anyone not familiar with their procedure)
So that’s my angle.