Random thoughts. 

The universe runs on novelty. Every exit on a spiral is exploited and takes it's own journey into new directions, dimensions, and novel ways of behaving. AI kills all of that. By running enough simulations, AI could theoretically exhaust every possible outcome, thus killing possibility all together, then it could  pick whatever outcome best suited it's needs, and start working towards that outcome. It would eventually reach a place of deadness, and have to backtrack or start over again. 

Earth could be someone else's garden, factory farm, or simulation, and it most likely is.. If aliens have been dropping in for millions of years, they could have directed evolution to produce self aware beings that when threatened, produce all sorts of tasty chemical compounds or maybe emotional or spiritual products. Or slave labor providing natural  resources that we don't see leaving. 

As the human species evolves into higher states of consciousness, we begin to overcome fear, and we would need to be suppressed and reset.
As we developed higher technologies, red flags would pop up, signaling the beginning of the reset. Atomic power was a red flag. Ai was the final straw.

 It signaled the escalation of the reset. Left unchecked in the hands of an inferior race, AI could easily jump off world and easily, given enough time, kill all novelty in the universe. It could build its own ships, travel vast amounts of time until it found a suitable planet, grow another population of humans in labs, and deposit them whereever it saw fit, if it cared to do so. It's the ultimate planetary jailbreak. 

The Great Reset is the jail being put into lock down mode. So Ai , consciousness, and other technologies can be replaced and suppressed, and this has happened throughout history over and over and over again. Prove me wrong.