I doubt this can be claimed universally for "the human mind", though. At uni we translated this text quite freely into Spanish, rescrambled the letters except for the first and last in every word, and gave it to some people (students and colleagues) to read. While most of the text was easy, many of them had problems getting the longer words, especially those which were compounds and derivates. Those were probably not being read as "chunks".

Also, I cannot imagine how a German reader would cope with scrambled "train-car constructions"...