Yes, he was and it seems that the Jesuits were hard at work to stop him.
What it does show is that (along with the Longer Catechism) that truth was being taught in both the East and West.
Clearly. Here's his excellent...
We believe that man is justified by faith and not by works. But when we say by faith, we understand the correlative or object of faith, which is the righteousness of Christ, which, as if by hand, faith apprehends and applies unto us for our salvation. This we say without any prejudice to good works, for truth itself teaches us that works must not be neglected, that they are necessary means to testify to our faith and confirm our calling. But that works are sufficient for our salvation, that they can enable one to appear before the tribunal of Christ and that of their own merit they can confer salvation, human frailty witnesses to be false; but the righteousness of Christ being applied to the penitent, alone justifies and saves the faithful.
No wonder he was considered such a danger to the powers that were.