The original 737 had a terrible safety record at first because of a rudder hard-over flaw. It then went on to become the most used in history
USAir Flight 427
United Airlines Flight 585
Eastwind Airlines Flight 517
Silkair Flight 185
Copa Airlines Flight 201
China Southern Airlines Flight 3943
MetroJet Flight 2710
But there are also many examples of aircraft with terrible early safety records that never recovered from their bad start.
From Boeing? They have a history of sorting their shit out. Maybe this time is different, but I doubt it.
They also seem to have a bad habit of blaming the dead pilots for not being able to fly they broken planes.