The practice started to help acclimate new converts from polytheism, so yah, originally that’s how it was thought about. But I think the current Catholic view on Saints is that they are like your specific causes lobby. They are more empathetic to your concerns, as they were humans that dealt with the issue you are seeking help with. And they have better access to the big guy. I’m sure some still consider them “lesser gods” with absolute weather control, but that isn’t what’s commonly taught.