"It's because we're crazy."  The writer may be closer to the mark than he realizes. I believe our "craziness" manifests itself in the deprecation of success. It seems we cannot tolerate it. The recent recognition of VIMY offers several examples. The Remembrance, while embraced by a vast majority, was attacked and questioned by many as well. Related to this was the attack in 1928 against arguably the best general of that war, Sir Arthur Curry, by the jealous and resentful supporters of Sam and Garnet Hughes, the first of whom was removed for his bizarre antics (and PM Borden did suspect his sanity), and the second, his son, who was refused a field command of a Division due to demonstrated incompetence. Even when we do reach and achieve beyond our grasp we have within our ranks those who feel the need to revile the efforts and the results. Canada.  Let's not do too well.
G. Gilligan
ps International Hockey, when we win, may be the exception (almost).