Who is anyone here to pasken whether the RBS”O agrees with HaRav Aisenstark shlit”a’s position? (Not to even mention he is a long-time of many decades and highly successful menhael of a Beis Yaakov.)
Keeping OTD children in a home where they are negatively influencing siblings and potentially bringing the other brothers and sisters OTD with them is a major shaila, and not something one can be sure it is even permissible to keep said OTD child in the home.