DFC, in my last post on this thread I suggested tht you look out the ICAO reference for ATS message addressing. In response you mentioned the Random FPL address book - which IIRC gives collective addresses for non-standard airways routes - and the AIP.
As you clearly can't be bothered to refer to the definitive document, I'll do it for you.
ICAO Doc 4444 PANS-ATM
11.4.2.2.2.2 A filed flight plan message shall be originated and addressed as follows by the air traffic services unit serving the departure aerodrome or, when applicable, by the air traffic services unit receiving a flight plan from an aircraft in flight:
a) an FPL message shall be sent to the ACC or flight information centre serving the control area or FIR within which the departure aerodrome is situated;
b) unless basic flight plan data are already available as a result of arrangements made for repetitive flight plans, an FPL message shall be sent to all centres in charge of each FIR or upper FIR along the route which are unable to process current data. In addition, an FPL message shall be sent to the aerodrome control tower at the destination aerodrome. If so required, an FPL message shall also be sent to flow management centres responsible for ATS units along the route;
c) when a potential reclearance in flight (RIF) request is indicated in the flight plan, the FPL message shall be sent to the additional centres concerned and to the aerodrome control tower of the revised destination aerodrome;
d) where it has been agreed to use CPL messages but where information is required for early planning of traffic flow, an FPL message shall be transmitted to the ACCs concerned;
e) for a flight along routes where flight information service and alerting service only are provided, an FPL message shall be addressed to the centre in charge of each FIR or upper FIR along the route and to the aerodrome control tower at the destination aerodrome.
It seems to me that the flights that you are talking about fall into category e).
I don't imagine that you will change your opinion simply because I have pointed out the definitive rules for FPL message addressing. Nonetheless, the theoretical answer has now been provided and you have a multitiude of people who know how the system works in practice telling you that you are wrong. The simple fact is that, in normal operations, the only unit that is obliged to take overdue action if you don't turn up at the appointed time is the destination aerodrome.
I suggest you learn to live with reality and try to understand why you re wrong (and to help you along, try to understand the difference between a filed FPL and the basic information needed by an ATS unit to process your transit through their area of responsibility). And before you get on your high horse again, yes, once you have established communications with a unit, you will get flight informtion and alerting services - but if it's not your destination aerodrome, you get the services because you're talking to them, not because you may just happen to have addressed a flight plan to them.