A sense of shortening or elongating can be created if harmonies are interpreted this way. He also discusses the affect of each beat within a given measure. An anacrusis can give the affect of leading to the next measure. There are specific examples given of four bar phrases and tonic elaboration in the Bach. Berry goes on to discuss problems with Riemann, Schenker, and Komar's views on rhythms.
Contradictions occur regarding large-scale downbeats and groupings.
These contradictions occur across various examples. Their theories do not appear as consistent as Berry's views. My reaction to this article is that it is a great source for deciphering metric issues. It is very thorough and one may not rely on the entire article for advice. The article is broken down so pin pointing a single issue is not difficult.