So, after predicating the opening remarks on "impossibility", as Stubborn pointed out, he goes into a personal attack on Father Feeney.
While much of it is slander, it's 100% irrelevant, so we can pass over that as a waste of time.
So, here's the thing. As even "Cardinal" Dulles (a friend of Father Feeney who then later defended him to some extent) pointed out, approved and respected post-Tridentine theologians like the Dominical Melchior Cano made the same distinction Father Feeney does between justification and salvation. Cano held, for instance, that infidels could be justified but not saved. So Father Feeney did not make this up.
Father Feeney's detractors claim that he committed heresy in denying Trent. Did he? What does Trent say (even if you read it according to the conventional interpretation)? Trent was teaching about JUSTIFICATION, not salvation. Father Feeney believed in justification by votum. So where's the heresy exactly? You can argue against his distinction (the one shared by Cano and a couple others), but it's most definitely not heresy in any sense of the word.