BTW If the person operating this service is employed by NATS would he/she be required to declare his/her involvement?
NATS staff have to declare secondary employment if it meets the terms of the Staff Manual.
On a tenuous link to that - I always wondered whether the person who produces the londoncontrol.com/ programme works for NATS and whether that was theft of intellectual property......
Without seeing the thing it's hard to know. Certainly the airspace, routes, sectors, etc are all information freely available in the public domain. That said, if anything specific has been filched from the MATS Part 2 (such as a specific procedure or wordings) then that is commercially protected and could be classed as IPR theft I suppose.