Space tourism will be noteworthy insofar as it will normalize more and more of the public to space travel, which in turn normalize the acceptance of the expenditure required.
A couple vaporized high profile customers will have a massive chilling effect on the industry.
I think Musk's "we are going to Mars, people will die" is the most sober/realistic take. This messaging will do a much better job eliciting a customer base that understands the product and that will lead to sustainable industry someday.