Everyone agrees,Stan included that it is very sad that the two people in that plane lost their lives.
However,he does also make a valid point with the feelings of loss from the Nantes club/community being understandable.
There was a real bond between the player/fans after a 4 year stint at the club and this would lead to a great sense of personal loss.
Like Stan says,he never kicked a ball for Cardiff,the supporters can pay tribute,rue his untimely passing but could not and should not mourn his loss in the same way as the people of Nantes.
This behaviour is probably a legacy from the death of Princess Diana,i don't believe ( but stand to be corrected ) that we had seen before, such an outpouring of grief for a public figure.It set a precedent for some would say an over the top expression of sympathy.