Predicting the future is tricky, particularly when it involves the decisions of complicated political processes where the decision-makers (most likely) disagree. Plans often change. We can't possibly know what they're going to do. Maybe nothing; plenty of large corporate projects never launch.
I certainly hope that Google doesn't follow the same path! But US tech companies have been complicit in human rights abuses in the past, so the public has every reason to remain vigilant.
The product hasn't launched yet, might not ever launch, and we don't know how the product will work if it did launch. I'd hope they're thinking about how to make sure nobody gets in trouble, but we currently don't know what precautions they came up with.
There are lots of companies working in China. We know of one incident involving Yahoo. Do we assume without evidence that any other companies working there have caused dissidents to be tortured?