I don't think the behavior itself is the problem. It's the AI's management of the colonies after they found them.
There's a lot of settings where this kind of colonizing strategy is absolutely necessary(where habitable planets are much rarer).
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The AI needs to do a few things when colonies are first founded:
1) Move Manufacturing to 100% until at least 8 buildings have been completed, or all tiles are filled(whichever comes first)
2) Building Factories, quickly followed by 1 or 2 Influence buildings.
If the AI could do that, then this issue should be alleviated.