The fatal flaw was human technique and presumably training, not fin attachment. The A300 has been carrying the can quite unfairly.
In your opinion, not everyones.
If the fin of a serviceable Airliner can be ripped off purely by Pilot cockpit inputs, then I for one don't think that Airliner should be flying.
However IF you are aware of these problems with the A300 composite tail, a design Airbus no longer use, makes much more sense.