On the other side of the coin at the aft R/H door it looks like there is a presumably aircrew person doing and amazing job of getting people out, whoever they are they deserve a medal.
If I am seeing same person, I think that person is part of airport response. They arrived in a white SUV with flashing lights that they parked and ran across to rear slide. First they pulled slide to straighten it after right engine shutdown, then continued to assisted evac.