No one said, as the magic "either" was in the right place when the idea was presented
The sheer number of buildings and researches this game has makes making an adaptable AI a very,very laborious task.
And even making a hard-coded AI that does the same thing every time is laborious, again due to the large number of buildings.
The AI has to build: labs, agridomes, residences, DIRTs,a GORF, med centers, recreational facilites in addition to the standard must-haves of a base: CC(s), SF(s), Smelters, power plants,VF(s). And then maybe some defensive guardposts too. When the maps get bigger, the AI might even hold two colonies on one map only.