It's unclear that this is an advantage, certainly not in terms of "logic vs syntax".

First of all programs written in curly-brace languages still also have indentation to indicate statement grouping / blocks / scope, even if it's not required, so for a correct program (and that's not deliberately obfuscated), and one that's in the process of being written by an LLM, any advantage there disappears. Furthermore, having both indentation and explicit block markers provides redundancy which could be a significant advantage for an LLM (it being a probabilistic text / program generator). And for an incorrect program that redundancy is a big advantage for the LLM because it should be very easy for it to notice a mismatch of indentation and braces.

The only downside would be a very slightly higher token cost for the redundancy. I realize that Python comes out on or near the top in most of the comparisons in the linked article, but I doubt that's the reason.