Right, presumably if these post-Tridentine theoligians had believed BoD was taught or defined by Trent, they would ALL hold it to be de fide. Consequently, there's disagreement here about whether Trent taught it. Alternatively, some of them might hold that, "yeah, Trent mentioned it, but it didn't really define it or propose it for belief, mentioning the notion merely in passing."
So, despite the fact that some proponents of BoD claim that it's defined dogma, that is the minority opinion among theologians.
Father Cekada was trying to argue that Catholics MUST accept it under pain of grave sin, but he didn't notice that he was also at the same time demonstrating that it was a minority opinion that this was defined by the Church.