I don't really understand. Why are graphs suddenly an issue, when they weren't in previous games? It's just part of the SGOTM experience, much like periodic spoilers in S&T games and the intermediate spoiler thread in xOTM.
As if the settling choices were obvious in SG10...
In the final analysis, the only true spoiler in the graphs is the culture graph telling people whether a team settled on T0, T1, .... Everything else read from the graphs is more or less speculative.
SG10 is a great example of spying on when a team settled. As it turned out, the better move was to the plains hill. Now, if you're the last to start and you can't decide whether to settle in place or not, seeing that the other teams settled on T1 instead of T0 makes it much easier to decide to move to the plains hill, not because that means it's the better move, but because you know you're on equal footing, no matter what.
But if one of the first teams actually figures out a quality logic why it's better to settle on T0 or T1, while others didn't, they're penalized when others can copy them. This argument only holds for the opening move, because, like I said, thereafter, it's all a matter of speculation.
AlanH made the right decision, imo.