==Grammar is hard to follow?

Isn't the complaint about the grammar being hard to follow just a PoV statement by someone with reading difficulties? Both the samples provided seemed clear enough to me. I didn't see any reference provided by a recognized authority stating there was anything unusual about the grammar used in this book. I've read it myself and never noticed any issues with readability. It seems fairly typical for a Simak book and a novel written in the 1960s.