Well yes, but that's Suzaku's particular fatal flaw, excessive passivity. It's a demonstration of how deeply fucked up the guy is, and his development through the series is all about overcoming the fear he has of being proactive again.

People seem to have trouble with the idea that flawed implementation of an idea doesn't mean the idea itself is flawed. Neither Lelouch or Suzaku demonstrates the perfect application of their ideals: Lelouch is overly aggressive, which means he causes an unnecessarily amount of damage and often has to frantically get his plans on track because he didn't think the consequences through fully, and Suzaku is excessively passive.