My guess is the DS has 20 ways to bring down an aircraft. Kill the target as needed -—the others are just collateral, sheep, useless eaters, sacrifices to Baal if the plane is on fire.
Sometimes seatbelts fail. In row 17 maybe especially...
The location of damage from this sort of uncontained engine failure is hard to predict. SW had a similar incident in 2016. Lots of fuselage damage, no window outed.