It is good they are doing this but i think they would be better served by making it more public and letting their customers know that they are dedicated to fixing problems as soon as they come to light. If they are doing the right thing a little drum beating would not be out of line.
It doesn't seem like any new bodies from any manufacturer come out without some slight imperfection.
Duplicating the shot over and over would not give you the same results. .
I think everyone is happy they are fixing the issue???