The public blog post is offered as exactly that, public. The copyrighted content that Google trained on was not public, not paid for, not permitted to be used i

The public blog post is offered as exactly that, public. The copyrighted content that Google trained on was not public, not paid for, not permitted to be used in training, and not used to train people, only AI. There's no relation between the post and the hypothetical you invented - it's misdirection at best and manipulation at worst to compare them.