There is no sense in Ireland that the Presidency of the Council confers some kind of democratic legitimacy on Sarkozy to comment on Irish affairs as anything other than a visiting head of Govt./State.
Anyway, already in the consolidated treaty of Nice:
Article 4 ... The European Council shall provide the Union with the necessary impetus for its development and shall define the general political guidelines thereof. ...
...
The European Council shall provide the Union with the necessary impetus for its development and shall define the general political guidelines thereof.