Here are the shot totals for and against the Sharks with the game tied, or within one goal, for the entire six-game series:
Given that the Sharks were #2 in the league at outshooting their opponents in tie, road games this season, while the Avs were 30th, it's no surprise that the Sharks outshot the Avs no matter what the score was.
The goal-scoring table doesn't look much different than it used to:
The irony is that while the Sharks couldn't buy a goal while the game was tied, Craig Anderson's performance wasn't great when the Avs were up one goal. So between a 7.7% shooting percentage and taking 71% of total shots when they were down, the Sharks could come back at will (if ever there was damning with faint praise...)
A less extreme pair of teams might not have come to the expected outcome in six games, but Colorado was just so extreme at giving up scoring chances and not getting them that the outcome in this series was unavoidable.