You might have a point if there weren't mods which already did exactly this, and did it well.You say it's easy, and if it was as simple as 'build x building, get y' you'd be right. But you also have to train the AI to handle jobs and their priorities, move around pops, specialize planets (with their own modifiers that might make them more useful in certain ways than others), split alloy production between starbases and outposts and ships of all types... you get the idea. The system ends up too complex for the AI to handle because everything is randomly generated and they're not guaranteed anything (well, outside of difficulty modifiers but that's different).
Seriously they could use either StarNet or Glavius as the foundation for a competent, competitive AI.
Every issue you raise has already been handled by volunteers, working for free in their spare time. This should not be considered beyond the means of a successful company.
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