These quotes clarify his intent even more:
“We have seen it other places, that equivalent of religious zeal leading to flouting of the law in a way that could lead to death … Inevitably, when you get that fanaticism, if you will, you’re going to have trouble,” he said.
“Are we collectively as a society willing to allow the fanatics to obstruct the general will of the population? That then turns out to be a real test of whether we actually do believe in the rule of law.”
If a "fanatic" dies due solely to their own behavior, say explodes a bomb on themselves, there would be no reason to stop enforcing the rule of law. If law enforcement or construction crews have any part in the death damn right it should stop the pipeline until the safety of all people including protesters can be assured.
There is another very interesting quote in there:
“We have to understand this is a resource where the long-term viability isn’t there, not because we’re running out of muck in the ground, but because we actually, collectively, as the globe, are going to have to stop using as much of this stuff.”
Dodge said that, not a protester. Like every other oil producer they are trying to get a maximum amount of oil out of the ground before the market for oil collapses at which point there will be no money left to clean up the mess.