For heavens sake Dick, your perpetual reference to conspiracy theories is just laughable. Do you wonder why very few people take you seriously any more?
Why aren't we concerned? Area frequencies are separate from the high level frequencies and in most parts of the J curve handled by different sectors or can be split off.
The aircraft making low level calls in the circuit needs to be in range of the VHF outlet and I'd hazard a guess that the number of such circuit calls being made on any frequency is tiny. More than a few pilots inadvertently make calls on area rather than CTAF already and it's not a huge problem - I'm more concerned about their calls being missed on CTAF than the effect it has on my traffic.