Reliability is in a certain way calculation of risks, also of nerve and confidence. You would never exclude any risk in helicopter aviations and especially not in Offshore Ops by 100%. But when the whole matter becomes incalculably out of a view of your pilot skills and volatile under technical aspects, it is hubris, or even foolishness and ignorance of untrustworthiness.
The (SUPER-) PUMA might be (or might have been) a super helicopter, however in present stage of investigations and their up to now open results, in my opinion the risks are incalculably and irresponsible.
Let us all hope in very clear results and positive solutions, the sooner the better. The contraries must not be discussed, because then consequent decisions are required and are on schedule, also in the sense of the current states of technology and science. Therefore an attitude of professional scepticism is required, not an infringment of technologogical neutrality. .