Upvote:4
His role as a general in the war afterward was remarkably incompetent.
You answered your question yourself. The above description is very accurate of his entire career; remarkably incompetent. It certainly explains the points you raise:
- He ignored an urgent report of an assassination plot two weeks in advance.
- He taunted the Archduke to ignore the first attack with a grenade saying "Do you think Sarajevo is full of assassins?", even while chivalrously encouraging the wife to stay at City Hall
- He "forgot" to inform the driver of a route change that would have made the car not pass by the shooter.
- He ordered the driver to turn around (apparently the car then stalled) a few feet in front of the assassin!
Even Wikipedia mentions his incompetence:
He was reportedly very zealous in his actions (multiple times he claimed "I was spared at Sarajevo so that I may die avenging it!"), but was apparently an inept commander.