Chalk one death up to a Boeing design in the last 21 years.
Whether or not that's a useful distinction to make is up for grabs (I expect the point was to talk about flights that most Americans are likely to take -- and by extension most Europeans, since I believe EU airline safety records are similar), but excluding those deaths is fair based on the specifics cited.
I suspect this is also the case for most western European airlines, but I don't actually know. So I didn't include them.
The majority of HN's user base is not spending most of their air travel on carriers operating on shoestring budgets in Africa or Southeast Asia. They are not flying most of their miles on charters run by operators with fleets of ten planes that carry a dozen or two passengers at most. They are not flying on ancient de Havillands or Grummans. They are not passengers on cargo planes.
The majority of HN's user base is flying on comparatively well-funded carriers operating within jurisdictions that enforce strict controls around maintenance, pilot training, crew workload, and other wider operational considerations. This doesn't make flying risk-free, and it doesn't absolve Boeing of their responsibility in building reliable aircraft. But it does mean that the average HN commenter encounters significantly more danger crossing the street than they do when flying.
The engine cowling was made by Boeing and was supposed to stay on when the engine lost fan blades, the cowling was what struck the side of the aircraft and broke the window in question. Boeing is redesigning the 737 cowlings to better respond to blade out failures.