The physic's engine doesn't allow realistic ramming, though. You'd ram a ship and just be bumped back with the very same speed you hit the ship if you EK. If you hit it from a weird angle, you can end up with 500m/s or even higher sometimes. While that is fun, it's stupid. Imagine a Ranseur cruise-EKing against you. We all know how tanky capitals are only useful in melee.
Without EK, the bump would be a one-time thing that deals massive damage and then constant damage because of the hugging. Tanks would turn into battering rams.
Better not touch a running system. Last time we got the aux slots with fart cannons.