I say yes, leave it, as it currently is an extremely risky option.
Every time I have seen a rider couch against aware enemies, it ends up with one or more arrows/bolts in the rider's chest or the head of the horse due to the straight line the rider is forced to take. You can break off and zig and zag a bit if you thrust on an angle with the lance, but with couching you are making more of a direct path towards your target.
Far too often it forces the rider too close to the side-stepping groundpounder who is now close enough to stick you with his fist if he even needs to.