Arcniz
Good post
It seems to me that what is happening in regard to composites being used for primary structure is that the very long final stage of development and testing is being done in service. I have no problem with that as a concept myself, even though I have no doubt that some people will die as a result. I say this because the only completely risk free way to tackle such advances is not to make them.
Whether we talk of people dying because of B737 rudder actuation or A300 rudder control forces and displacements I believe the certification authorities have got it very right when it comes to their practical approach in analysing the risks and benefits of not taking stronger retrospective modification action.
If you need to travel a long way in a short time a passenger ticket to fly somewhere is a remarkably cheap purchase that allows a very productive use of half a day. However uncomfortable, unpleasant and boring the experience may be there is no justification for suggesting it is a dangerous way to meet your objective.