Correct (though System-specific exceptions might apply. Somewhere. Don't look at me, look at FD!)But only for PMF placement, correct?
So expansions - except for invasions - still require a total of less than 7 factions?
If it was before, you could then have a system with 7 native factions and be completely immune to expansion into your home system.
Some PMF out there enjoy that fact. Though I'm quite happy to have our HQ filled up with 7 and making sure none retreats out