Thanks for the comments!
The Gobos aren't the brightest true, but they aren't really supposed to be. Each Gobo's movement is entirely determined by 5 stats: their speed, how often they change directions, jump height, how often they jump, and how high the trampoline bounces them. If a Gobo's turn frequency stat is set at 1 turn every 6 seconds, then it will run to the wall and be stuck there until 6 seconds have passed, at which point it will turn around. That may be dumb behavior, but you can train your population of Gobos to turn around more often and avoid getting stuck by repeatedly putting spikes to the far right. That way the Gobos with short turn around times won't ever reach the spikes and will survive to reproduce while the Gobos with long turn around times will die on the spikes.