This broadly makes the Official factions a faction within a faction....
Own diplomacy, own trade deals etc etc.
Some factions do have their own ID (or did at any rate). Benitez were offered one an turned it down.
If i understand your proposals correctly if the Officials had their own IDs they could therefore only make up their own diplomacy? Who do different groups approach if they want to deal with a faction (perhaps a a trade agreement or some such)?
They can't speak to the Official groups as any deal they may or may not do with them is only applicable to that one official group and not to the faction as a whole.
As for all of the Official factions home systems/bases being "Guard" systems the Benitez one isn't and never has been. We didn't want it to be a "guard" system that potentially restricted RP and visitors. This is part of the reason it has (or had at any rate - I've not checked lately) the cheapest source of Artifacts in the Corsair Empire.
We wanted vistors and the RP that came with it. Unfortunately for us (the Benitez) the price difference v's the extra distance is simply not enough to persuade many traders to come visit.
Also with respect to your thoughts on competition for an Official faction seat what are the benefits after your proposal is enacted of being an Official faction? The fact you can make your own diplomacy up and it affects only you? You can do that as an unofficial - or even as an official in areas there are still more than one official faction.
With regard to your comments on the tech nerf issue you make it sound a little bit like the Officials word is what happens. My experience tends to suggest that is not the case... I guess none Corsair factions may have had different experiences?
Finally my view has always been to consider various groups as individual groups. Whilst i suspect it has been lost in the mists of time now the Corsair dust up with the Zoners at FP9 was only related to the Omicroners, and their immediate supporters. The RP that took place was not all Corsairs against all Zoners. The Corsairs were pissed at a very specific group of Zoners for some fairly specific reasons (whether you think those reason were valid is a whole different issue and not one I'd suggest we get into here!)
I think that while I understand the purpose of your proposal I don't think it will help much and I doubt it will achieve what you would ultimately like it to achieve. So while this is not a poll I am very firmly in the "no" camp to this idea.