Due to schedule changes, a party of 5 pax is on it and DL is still able to sell it when I checked today. When originally booked, the connection was 58 min.
I was previously told by DL that MCT in SEA for DL-DL was 35 min so I am not sure how 31 min is legal.
Situation is further complicated because all 5 pax have individual tickets, 2 of which are on an AS award, 2 on a DL award and 1 paid DL revenue. All 5 have the same exact itinerary.