Bucey on Modern Reformation

I found this article by Camden Bucey on Feeding on Christ to be interesting, so I wanted to pass it along. It does seem interesting that Modern Reformation, which is associated with Mike Horton, would have a Roman Catholic write an article on a view of Calvin's doctrine of union with Christ that is seemingly different than Horton's. I was wondering if they were trying to paint Richard Gaffin's view, set forth here, as Roman Catholic, which makes one wonder.