Indeed!
There is no heresy in the new rite. Rome cannot authorise heresy. But the new rite, it would seem, does not give us enough Catholic doctrine to prevent Catholics from unwittingly becoming Protestant in their thinking. As Fulton Sheen put it, "If you don't behave as you believe, you will end by believing as you behave." The new rite of Mass is capable of being carried out in a Protestant manner. Given the chronic tendency of our fallen human nature to go for what is easier, our liturgy, in the hands of the ill-instructed, will always tend to a Protestant interpretation. And Catholic liturgy carried out in a Protestant manner will lead the worshippers to Protestantism.