Citation? I did a little digging of my own, because I found this claim to be uncharacteristic of any company I've ever worked for. I did find some restrictive clauses, but I don't think they are as broad as you are suggesting.
You can't use Google's fully-trained models as a reference in order to train your own models. Lower-level uses of TPUs to train your own models from your own training data are unrelated to those restrictions.
Certainly nothing in the Acceptable Use Policy looks anti-competitive to me.
https://cloud.google.com/terms/service-terms Service Specific Terms -> AI and Machine Learning.
You can't use Google's fully-trained models as a reference in order to train your own models. Lower-level uses of TPUs to train your own models from your own training data are unrelated to those restrictions.
Certainly nothing in the Acceptable Use Policy looks anti-competitive to me.
Obvious disclaimer is obvious: IANAL.