If I understand correctly what the BBs said about the Points per 100 Shots ratings, Nomoteam had an overwhelming advantages at PG, SG and C and should have won easily. That it was a 1-point win was largely due to unlucky die rolls for Nomoteam for three quarters, and then reversing that in the fourth sufficiently to get the predicted result for the game as a whole.
So, no, if we are to believe BBs, this was not stamina related any more than any other skill. Just random numbers clustering in Nonoteams favor in only one of four quarters.