No that just means that everything has gone according to plan on these arrivals thus far, it says nothing about tomorrow. It says nothing about the systems in place that modern airline should have functioning. For example, maybe the recruitment systems/policy from two years ago have prevented an accident in Palau but the current difficulty recruiting will ensure an accident soon.
Who is responsible for recruitment standards? The guy on Bookface, just as he will be responsible for the lives lost should that occur.