According to Osho, Sahjobai stresses inwardness because in authentic bhakti there is no opposition between love and meditation: perfected love ripens into dispassion (vitaraga), surrender dissolves the outward ego revealing pure inward being, and worship of the outer guru is only a ladder to the inner guru. Love and meditation are different vehicles to the same destination; at the end, both are identical to inner awakening.
Real love and devotion make you drop your ego and turn inside, and the outer guru simply points you to the guru within.