pba: One should consider it quite obvious that i was not talking about speaking hashkafa during shiur. This is of course bitul Torah.
One should instead understand that any guy of any considerable caliber should be able to draw out of the torah he is learning from his rebbi how it is proper to act.
It is important that the guys rosh yeshiva says shiur. thats a good starting point. i think what was mant to be said was what hashkafos has he imbibed from his rosh yeshivas shiur that would help him in this situation