If all (for any reasonable definition of all) belief systems are in agreement with the concept that "Putting innocent lives at great danger just so that somebody can experience some sense of excitement", then that behavior being "shameful" is closer to "Fact" than "mere" opinion.

There are many, many things that people find shameful that are more a reflection of their personal belief systems than they are of universal applicability - That 10 minute drive through the streets of paris was not one of them.