Traffic information (for aircraft on a basic service) should not be expected outside an ATZ. Yet if you read the revised MATS part one, it still states
2.1 Aerodrome Control is responsible for issuing information and instructions to aircraft under its control to achieve a safe, orderly and expeditious flow of air traffic and to assist pilots in preventing collisions between:
a) aircraft flying in, and in the vicinity of, the ATZ;
Surely all this is saying is that you shouldnt expect traffic information on other traffic
outside an ATZ, because it may not be speaking to the unit concerned. Whereas any traffic
inside the ATZ will be (hopefully!) in contact, so of course you can be given TI on that if you are outside... I don't see the problem here! But then, pilots who don't look out also don't see some of the problems too....