Its hard to read into these things, but given the diverse nature of notifications (zoom,
whatsapp, normal calls, etc.) I imagine the Ross has its list of acceptances, sends it those who will be making the calls, and leaves it to them to notify their applicants. It looks like some might email their whole batch and schedule zoom calls (like mine), others may phone one by one. All I can make of this is that you won't know until you know, so as difficult as this is, try be patient folks. If you're in, you'll hear soon enough