On the TD throw to Gurley, three receivers are wide open. In fact, Gurley’s window is tighter than the other two, but Gurley is the one who is in the best position to continue upfield.
In this shot, the ball is already at the 50. Higbee is at the 41, and whoever is wide right is at the 38 and breaking back. Gurley is at the 44.
Here the ball isn’t visible in the capture, but I think it’s about the Dallas 47. From this angle, maybe Goff coulda hit Higbee in stride.
Whatever. 3 guys wide open here.