As 7M is (collectively) neutral or friendly with most of the cults (Enemy with none, and hostile 'only' with Eurmal, Maran Gor, Odayla, Orlanth, Storm Bull, Waha and Yinkin), this seems a high probability. IIRC, in addition, Humakt has no problem with Yanafal, Etyries is associated with Issaries and there is not too much problem between Irripi Ontor and Lhankor Mhy.