I believe the par-three course that George C. Thomas built at Riviera is the same one that MacKenzie saw during his visit with Thomas in early 1928, and he expressed his dislike for the course, citing that it was monotonous and repetitive, ands that it lacked strategy. Of course The Doctor may have been slightly bitter, as he arrived at Riviera hoping that he would receive the commission to design the course, thus possibly the reason for his unfavourable opinion of Thomas’ work.