When people talk about "making games as addictive as possible" in the general and pejorative sense, they usually mean something else: they mean that the optimization goal is not "fun", but "making money off players". That very often involves making games less fun on purpose, to exploit player's psychology against them. You keep frustrating them on purpose - but not hard enough for them to abandon the game entirely - in hopes that over time, enough of them will break and buy the paid content or unfrustration features, to relieve their psychological pain. Explicitly additive aspects get included to maximize the time the player is exposed to these monetization opportunities.
Addictiveness is ultimately a red herring in these discussions. Factorio is designed as a win-win game, the devs wants to give their players the best experience in the game's category. Modern, pay-to-win, addictive games are designed by malicious people with no moral compass, who want to extract as much money as possible from people, as cheaply as possible.
(Like with many of the big problems in our industry, focusing on tech or immediate "sciency-sounding" consequences is missing the forest for the trees. These problems all stem from people being allowed to exploit others for money. Solutions to mitigate immediate consequences will be worked around very quickly. Real solutions need to involve restrictions on the types of business that can be done.)
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[0] - https://xkcd.com/356/