Hello99. Yes, the policy not to use the fish is a business decision because it is StarK policy to “strive to have our kosher certified products accepted by all kosher consumers,” meaning, lets be machmir right now, until we have clarity. If they felt it was prohibited by halacha they would not have written that. Dont believe me, call them and ask them.
Rabbi Heineman recommends consumers be machmir until things are clarified. Is that a psak that the worms are assur or a statement that says, we are not sure what the halacha is, so better safe then sorry.