I agree, Alliances is very cool thing and feature, btu if you remove own alliance so you will have challenge to forge new ties with other 2 neutral alliances. Its just good challenge for people who , for example dont want to pass on espionage (it is also cool feature i cant imagine game without, esp in Beyond, where all races have different spies), so might just lower balance of own alliance in order to have more enemies/less cover. Anyways, its a case for ones who win games on Extreme with balanced powers without any exploits usage (there not much people like that)
I will issue modified list of yours for Beyond - and will replace spy option with this one

This (forging new stuff (diplomatic races) and being able to spy (spy diversion between races and common counter-espionage bonuses) are two things that much more actual in Beyond , than they are in AI mod alone.