It's not the kinetic energy that worries me, the SABOT is one mean SOB when it comes to muzzel velocity..
An obstacle near the target (0-40m) shouldn't be any problem at all, as the sand dunes example says.
But if the obstacle is too close to you, is it possible that the SABOT can get out of course and miss it's target?
I know that high velocity small arms bullets have that problem.
As soon as it hits an obstacle it can change it's course to (almost) any direction..
The SABOT doesn't spin, so it should not get much out of course, but with a target range of 2000+ meters...????