Thanks @warmsoup! I think it would be safe to say they interviewed everyone who got accepted, only because in their email asking me to answer their poll on interview availability slots, there was a gentle emphasis on clearing my schedule because it was important and faculty may not be flexible due to busy schedules.
Actually, now that I recall, I think I remember the director saying there were 6 people total accepted for this year (@mmarciel) but I was a mess of adrenaline so take that with a grain of salt. But pretty confident now that’s what she said.
Good luck!