Here is an example posted by you that directly contradicts your poor catechesis theory and confirms what I stated that it is very convenient "not to know".
No, this priest encourages Confession, but at no point has he ever spoken of why it's necessary, and under what conditions (i.e mortal sin). I'll have to bring that to his attention. I've noticed a severe lack of theological "precision" among Eastern Rite Catholics, including their clergy. On the other hand, this same priest gave a terrific sermon denouncing the notion that people can be saved by sincerity without Christ and outside the Church. He spoke more strongly on this subject than I had ever heard from any non-Feeneyite Traditional priest.