The FAA operates on basis of acceptable potential losses.
When it was discovered that the electrical lines running through the wing tanks on some BA models had the potential of arc due to worn unsulators, the 2% per decade dice roll was deemed an accetable risk.
When the AB software failures emerged did anyone ground them?
For a variaety of reasons, I don't fly commercial anymore.
One day there will be an anomolous period of excessive losses. Probability tends to catch up with you.