In summary, saying “accident” makes it sounds like an unpredictable effect, instead of painfully obviously risk that was not taken seriously enough.
In e.g. aviation, incidents leading to some sort of loss are always called “accidents”, even though we know there’s always some risk of planes crashing—it happens regularly. That doesn’t mean aircraft engineers and manufacturers don’t take the risks seriously enough, they usually take them very seriously indeed. It’s just that “accident” only means something like “unplanned and undesired loss” (IIRC that’s roughly how Nancy Leveson defines it).
In e.g. aviation, incidents leading to some sort of loss are always called “accidents”, even though we know there’s always some risk of planes crashing—it happens regularly. That doesn’t mean aircraft engineers and manufacturers don’t take the risks seriously enough, they usually take them very seriously indeed. It’s just that “accident” only means something like “unplanned and undesired loss” (IIRC that’s roughly how Nancy Leveson defines it).