Needs to be able to take out cheap threats all over the tank not just anti tank missiles. So needs some more effectors for those threats and additional sensors.
Trophy is enough for now, it is more than capable of intercepting and detecting incoming/potential threats at once. Although they have another systems developed to supplement the latter, the Trenchcoat system.
The atgm , even a thred generation one like the kornet are enough to Immobilize completely any tank movement on the modern battle field, this is the solution for that problem. Different problems different systems. You didn't have an APS you don't have a tank. Simple as that.