BTGuy -Like I said before -you can’t bring a Raya from a Musser Shmuz. I’m sure R’ Shmuel was saying it during a Shmuz. If you told me you called him personally and he told you there is such a Chiyuv -then I would call him up and discuss the Halacha with him.
When s/o gives a Shmuz they aren’t Paskening L’halacha -they are saying things to emphasize the importance of the subject, like in this case regarding Kiruv!