Its the Iridium. I believe they went the crummy Progamtic route. Luxury trade routes no immune to flip. Especially now with changes to a starbases, trading quantity of constructor for money and resources. I liked the old way of starbases. Just build constructors with multiple constructer slots. One constructor does like 4 parts don't need progmatic abilties either that kicked it to 8 parts a constructor and old power numbers.
I guess cultrure flip is like 8x. It went 7.8x and 1%. It was 6x.