This is basically the opposite of how juror psychology works. Jurors in these cases tend to vote against defendants they identify with because they prefer to believe they’d never act like the defendant. Source: I’m a former jury consultant who researched and consulted on these kinds of cases.
If Waymo or a concurrent replace drivers, they don't get that free pass anymore, because the jury will not think it could have been them.
That would actually be a better situation to today's "free pass for everyone as long as no drug involved" that rules nowaday.