There's still more news of teams exiting (or declining to officially register for) major prize competitions:
ACME Robotics will Not Participate in the Regolith Excavation Challenge - Newswire - Part of the trouble involves flooding, but, as we've seen in other cases recently, another part concerns prize management and rules. This is the 2nd time today, in 2 different competitions run by 2 different organizations, where I've read of a team objecting to rules taking too long, from their point of view, to pin down.