By YOUR OWN Vatican II standards - Trent must have been a failure. No?
Protestantism flourished after Trent....
So it must have been the errors of Trent that did not prevent the spread of anti- Catholicism... si ?
See what I did there?
I'm using your own standard for a successful council -
gauged by the succeeding decades...
as a determinant on the effectiveness of any Council..
Yes, a typical modernist deflection of the rotten fruit in front of one's very own face.