a) The EPO was unable to install a community patent.
b) Who cares about patents in Turkey and Switzerland? They are assimilated. You just need to designate the patent to their offices once a community patent is there and they would still adopt EPC rules.
c) In some aspects it is a very undemocratic organisations which still does not solve the software patent problems and gets into propaganda business. Parliament has to decide and take into account all political topics involved.
d) The EPO is a repressive organisation against critics, legislator, judiciary and executive in the hand of a community.
e) German language is not respected as what it is, the leading language of European patent policy.
f) Institutional growth and slack
g) patents are still unreadable by the human species.