Transition strategy still seems valid to me benh, but I think it calls for an ideal map. In fact, the whole SE seems to call for an ideal setting to me, even on higher levels, to be useful for a space win.
See, the main advantage of the SE is warring, right? But a Space victory only requires one war, which a CE can normally handle fine, even on higher levels (using a favorable timing Axe or Cat/Jumbo rush.
In order for the SE game to NOT be about constant warring and still be stronger than early cottages, they need advantages, like a Philo leader, the Pyramids, or a food-heavy start.
To me, the big mistake here was making the game so stacked against the presumably weaker strategy. I know if they had simply dominated early research it might have been even more impressive, but the SE simply isn't THAT strong.
I would like to see the same team take on a game with a Philo leader (or better yet Lizzy, with the SE/CE synergy) and build the Pyramids. Then they could really show us what their economy could do, and make their transition showing us the momentum can be maintained.