>You are right. Catholicism is just another cult too.
Well, that isn't exactly what I meant. I think you don't have a high opinion on religions in general - but most religions like to think of themselves as "religions", or, in the case of some Christian groups, as "churches" - but not as cults.
On the other hand, "libertad de culto" is indeed commonly used for "religious freedom", and most likely, that is what they are aiming at. Anyway, the fact that religious (or "cult") freedom is guaranteed in the constitution is probably more important than the specific terms used.
Difference in opinions hath cost many millions of lives: for instance, whether flesh be bread, or bread be flesh; whether whistling be a vice or a virtue; whether it be better to kiss a post, or throw it into the fire... (from Gulliver's Travels)