These incidents are simply a continuation of the basic 737 problem - that the design is too old, and would not pass modern certification. So we had...
Single rudder actuators, that had a tendency to turn the aircraft upside down.
Patched.
The same warning horn for config and high altitude, resulting in crews running out of oxy.
Patched.
Speedbrakes that caused elevator vibrations and flight control problems.
Patched.
Wing too close to ground for modern fan engines.
Patched.
Fuel pumps relocated into the center tanks, which overheated and exploded.
Patched (sort of).
Stab-trimmer becomes inoperative with high flight loads.
Forgotten about.
Elevators unable to be separated if jammed.
Forgotten about.
Anti-stall trimmers, which fly the aircraft into the ground.
Awaiting a patch.
But how many band-aids can you stick on a 60 year old design?
Silver