I think she misunderstood them when she eavesdropped, since she only heard a portion of the convo. There's no way baixing would actually cut yu yin off since jiao (ml) is sponsoring baixing, and baixing's president and the ml are friends.
what i think they meant is the previous web series yu acted in. Since the director (Yu moms brother) web series weren't good.and they didn't want yu to act in those anymore so they "shut him out"
Wdym by shut out? Im quite confused can someone explain