By no means am I supporting what the Tesla did here, but where does this attitude of "lane splitting is ok for bikes" comes from? Let's turn the tables, if a car comes up on a motorcycle from behind and it can fit between the motorcycle and the car in the next lane, is it ok for the car to lane split with the motorcycle?
If you are a motorcyclist who lane splits, consider this, all that's needed for you to get hurt is a guy who doesn't pay enough attention and/or is simply not expecting you between lanes, or had a bad day and is steaming about something and will take the opportunity to hurt you while following the rules of the road, because you are the one breaking the law. Is it worth it? If you think so, would you consider riding on the highway in the wrong direction because you can fit between the cars riding the lanes (heck, at least they can see you and you're not sneaking up behind them)?