It's worth making explicit: this helps native-language readers too! Scholarly papers full of garden path sentences are mocked for a reason. Convoluted writing is hard for everyone to understand.
That's only a subsection of how accessibility helps - there's temporal accessibility and cultural accessibility (and probably even more facets). Curb cutouts and automatic doors help people with wheelchairs. But it also helps people carrying large packages in their hands, or are riding a bike.
Similarly, accessible writing helps people who are feeling tired, are distracted, or are trying to skim the material.
FYI, as a non-native English speaker, I have no idea what a "garden path sentence" means.
But the point is that "garden path sentence[s]" are more random, more free and loose.