I believe that Jigsaw is intended to get persons to a 'place of safety' within 2 hours (the ARRC has been defined as a place of safety, the same as a full size standby vessel).
The 2 hours figure is pretty common across the NSea, survival in the water for up to 2 hours is the intention of the suits etc.
So on a flat calm night when the ARRC was able to make maximum speed and the survivors were all in one place this performance does not look good. (Particularly when compared with pre-Jigsaw - which would have been 5 to 15 minutes). Possibly the helicopter winching of the entire crew could have speeded things up - but that seems to be subject to another level of 'discussion'.