The inconsistency in opinion is bizarre. When Hamilton and Button came together, Hamilton was deemed to not have a right to be there, Button clearly didn't see him and was within his rights to take the line.
Hamilton takes the line and it's his mistake for not looking in his mirrors. Opinion on who is in the wrong can seem to be applied depending on how Hamilton is involved.
Hamilton/Button you can argue the spray made visibility hard, and I would agree that Hamilton shouldn't have been there... But today, you really can't pin it on Hamilton. Two drivers hit... End of... But as usual, people want their pound of flesh.