I feel like the news media coverage of plane crashes is the same as train derailments: it actually happens often enough that it is most of the time ignored, until one happens that brings in the ad revenue and then suddenly news media is scouring every inch of airspace to find the next one for the flavor of the week. Then once it stops getting ad revenue they move on to something else.
Accidents with small aircraft and near misses happen all the time. And yeah, you can see how the media report those more after a large accident.
The Boeing stuff doesn’t happen, at no frequency. They are a one-off. You can maybe point at Fokker, but they are an example of the normal situation, where a plane improves more slowly than the average and becomes dangerous by inertia.