Time to let it go. I grew up not terribly far from a couple of terminals and storage sites. To see them now, they are in need of investment.
Another way of looking at it is if there was any kind of Spetnaz-type attack on it, the entire 2000km of it is a liability.
It's a bit like circuit switching vs packet switching. A bunch of trucks on diverse routes are far harder to locate and destroy than a dedicated pipeline. The pipeline is also considerably more expensive to install than a fleet of trucks. With some buffer storage at the point of use, you're off to the races.
If we're talking about economy as opposed to security, then of course the ability to just pump more gas down the pipeline is very useful. But if the enemy wish to deny you the use of it, it's not terribly difficult to think of ways to disrupt it.