Now two of the principles coming out of the liturgical constitution of that particular council were those of noble beauty and noble simplicity. The former -- noble beauty -- is frequently ignored, while the latter -- noble simplicity -- is frequently misunderstood or misrepresented to mean 'minimalism.' Simplicity need not mean "plain" however, and the importance of nobility and beauty in liturgical art cannot be ignored either. Also important to remember in all of this is that the Second Vatican Council neither mandated "Mass facing the people" nor did it require the installation of a free-standing altar in a historical church; these were options, not requirements and this is important to recall if we are to accurately consider what is and isn't truly required in these particular exercises.
Bearing all that in mind then and turning back to St. Catherine's, we see here in the current arrangement a situation that will be familiar to many of our readers: a non-freestanding altar with an attached reredos is seen in behind while a newer, free-standing altar has been installed before it. In and around the sanctuary, extra chairs have been added for concelebrants (rather than simply utilizing the chancel) and the sedilia for the priest has been arranged so as to face toward the nave: