Alas, yup. They have a page where they list the snacks unsuitable for celiacs, so you can Trash them pre-emptively, but there's a lot of dried fruit and other types of starches.

ETA: Looking at the varieties of snacks on the UK site, perhaps after they expand their offerings here, there may be enough variety of more complex carbs that it might work, although I don't know if the differences are due to US shipping regulations or just starting smaller.