I agree that the game points appear to be nicely balanced, which makes it almost impossible to win with the mobile goals alone and without scoring any rings. Of course, that assumes evenly matched opponents.
However, I am not sure that it will be easier to put mobile goals on the platform one by one, rather than having a robot park on the platform while carrying four of them.
Also, it seems like it will be very unlikely to steal a mogo from a competently built robot, once it gets hold of it. Just look at the pneumatically actuated claws in the Taran’s concept.
It is much easier to imagine two opposing robots grabbing the same goal and neither letting it go. I think, there will be very few opportunities to score any rings on the neutral goals until the last 30 seconds of the game, if the defense is competently played.