I am afraid you misunderstand the situation - it is not about information transfer it is about information interpretation. How you judge the information you receive is the important factor. A yoke does not add any advantage because the interpreter of the position may well differ in where he sees the position of the yoke and the threat or otherwise it represents. If you think of visual perception as reliable I would point out that an instrument is a much more likely to be read reliably than the position of a yoke.
Now I assume you are not a pilot otherwise I would not need to explain this. At night without any visual references it is easy to become disoriented. This is where the aircraft instruments come into play. Running off separate reliable mechanical or electronic inputs they give an accurate and measured stream of information which a trained pilot can use to fly an aircraft safely. If one instrument does prove to be unreliable then there is enough redundancy in the others to enable the pilot to fly the aircraft smoothly. It is important to remember that the instruments are not an indirect transfer but a reliable indicator of the state of the aircraft at the time. Over many years instruments have been refined so that they are more accurate than human perception.
Of course to use your instruments requires training and cockpit discipline. The mode of input for control directives is actually irrelevant and comes down to preference. Your direct v indirect information transfer is one of the shoal of red herrings. It falls at the hurdle of interpretation. There is clear evidence that the PNF was aware what was happening with the aircraft. How was this - he couldn't see the sidestick but he could see the instruments and they gave him the information he needed. His actions and later perceptions were not sufficient but this does not alter the fact that he knew there was something wrong very rapidly. The PF does not seem to have looked at his instruments at all and this is a clear training failure for which the airline must also be held responsible.
You also owe Dozy an apology - of the non-pilots he is perhaps the one who has understood the dynamics of the accident clearly. It was human generated in a situation which was clearly survivable if the crew had been adequate.