Just a couple of minor bugs I noticed when choosing a couple of different ideologies:
EGALITARIANISM - FAIRNESS - Supposed to get "three free colony ships", but I got three colony ships, and two constructor ships. Haven't noticed if this happened in other games, but it happened in my current one
PACIFISM - KINDNESS - Not in this current game that I'm playing, but sometimes instead of three constructor ships, I've gotten five constructor ships. Doesn't happen all the time, but has happened multiple times
The errors are not in the culture tree but the tech tree.
You get 2 free constructors when you "discover" Starbase modules the tech tree says starbases tech but you get that free at start.
So I believe you are getting that tech at the same time you select the culture that gives the free ships.
Still a bug that needs fixed but appears to have a lower priority at the moment.
Bottom line you should be getting those two ships it is just when they show up that is a question.