"The Catholic Church is, however, of the opinion that we cannot yet speak of a consensus such as would eliminate every difference between Catholics and Lutherans in the understanding of justification."
(Official Catholic Response to the Joint Declaration)

The response points out that the condemnations of Trent still apply against Lutheran doctrines. Catholics believe in an interior transformation through the infusion of God's grace by the sacraments - a renewal and sanctification of the interior man. We also believe that man has to cooperate with God's grace. Lutherans believe God imputes grace, covers sin and that grace is irresistible. 

As one Lutheran stated: "In fact, the Joint Declaration on the Doctrine of Justification is a fraud. It was a sell-out by revisionist Lutherans to Rome."

https://www.firstthings.com/blogs/firstthoughts/2010/03/a-betrayal-of-the-gospel-the-joint-declaration-on-the-doctrine-of-justification