... This camera will be Canon’s first foray into the high megapixel realm for a DSLR.What is your definition of high megapixel? Back in 2002 when the 1Ds was announced, 11MP was a lot compared to most other DSLRs at 6 or less, and most P&S cameras less than 5MP. In 2005 16MP was considered 'high resolution' (1Ds Mark II). Same with 21MP in 2007 with the 1Ds Mark III.
I completely understand what you are saying, but it's not like Canon has never been competitive on the MP front, as they have definitely worn the megapixel crown a few times. Now in the modern era (since Sept 2009) they have constantly lagged behind Nikon and Sony with full frame cameras (21MP vs 24; 22 vs 36), but lead in the APS-C lines from Sept 2009 through August 2011 with the 18MP sensors, until being superceded by Sony's 24MP sensor in the A65 and A77.