R’ Shmuel Berenbaum, had certain ideas about yeshivas and what a ben torah should be immersed in. R’ Shmuel said in a shmooze it’s bitul torah for a ben torah in yeshiva to be reading a newspaper “even one such as the yated”. R’ Moshe Tuvia Leiff, heard from R’ Shmuel, that if there would have been daf yomi in the days of the Yevanim, they would not have included it in the decree.
R’ Shmuel, further ,had a certain view of what should be learnt in a yeshiva. Some 35 years ago, a small group of talmidim and alumni formed a chaburah to learn the Rambam’s moreh nevuchim at night in the yeshiva’s ezras nashim. When R’ Shmuel found out about this, he told them they cannot do this in yeshiva and must learn this elsewhere. More recently, some 15 years ago, a fellow arrived in yeshiva and started a navi chaburah during night seder. Again when it came to R’ Shmuel’s attention, he briefly told him that it was not acceptable.