I'm an insurance defence lawyer and have been for over 25 years. You need a "cause of action" to commence an action. So far, there is one cause of action with this unfortunate death. Please ask your dad how many "salivating lawyers" can sign up his administrator or executor in order to commence the legal action? Or, is he suggesting a class action over this one accident? If so, ask him if he thinks that class action is likely to be certified, and if so, what the damages are to the Plaintiffs (other than this lead Plaintiff, if that is what he is proposing).
Tesla has insurance and this case will be settled without seeing a court room, and the insurer for the truck driver will be paying for the majority of the settlement. But litigation is costly, and Tesla won't want any press or precedent, so they will be paying too.
That's my guess.
He did say if it would ever to proceed it would likely be settled out of court. But that doesn't negate lawyers wouldn't be trying. I'm guessing if the family wanted to proceed with a lawsuit, there wouldnt be any shortage of lawyers willing to take that case.
My father has been a lawyer for 33 years. I didn't say he would pursue it, I simply implied he could see the lawyers licking their chops. I've witnessed many other lawsuits with much less merit...so this wouldn't surprise me one bit if it proceeded.