Matzav.com is all worked up about this:
...Did you also know that the affect of this tumah will cause you and your prodigy to learn Torah improperly and could, G-d forbid, influence your offspring to go off the derech!?
How do I know this to be true?
Anything that takes you close to Hashem is emes while anything that takes you away is sheker! There is nothing in the world but emes and sheker. There’s no neutral zone! Does that make sense to you?
Please ask that your yeshiva not distribute this drink to your kinderlach. Please also ask the frum stores not to sell this stumbling block. Consider that when a non-Jew sees this product in your shopping cart, they see this, even in a minutia way, as your participation in their holiday and this causes a chillul Hashem.
Do you think that this is an issue? Or do you think this is another overreaction to something harmless?
