As mentioned before, I'd like to propose the following.
The change makes sense in regards to systems that are quite infrequently patrolled by military patrols (Tau-37, Sigma-19, Bering, Hudson... You know, those systems that are not really important for house economy. It works (in lore) as well for systems vital to some operations, but too underdeveloped to get frequent house patrols going (Omega-11, Sigma-17...). As those are the majority of the borderworlds, it can be left as a general line.
Systems that have reasonable house presence and/or infrastructure (Omega-7's right half, Omega-3's left half, Tau-29's right half (including Shinkaku?), etc), however, should be exceptions from the rule, perhaps even dividing the systems or limiting the respective factions to a 10k bubble around bases plus tradelanes on 'their' side for example. Please don't quote this as a nonplusultra-solution, the details of the exceptions could be fleshed out further as well.
