Doesn't that just mean there's a whole lot more fog to peer under, a bit further away from the start point?
No, not really. By that point, you will have decided where to settle your first City relative to the land that you see (relative to Hills, Forests, etc that could be discovered via those techniques but not by a team that does not use them). Similarly, the direction in which you send your initial Scout/Warrior/Settler doesn't become as luck-based in the case of a not-extremely-carefully-planned-out distribution of Resources/Hills/Forests/etc.
By the time that additional info is needed (for determining if the initially-selected City #2 location will "stick" or will be potentially altered), every team will have had good number of turns to send out an exploring Warrior/Scout (and likely multiple of such units).
The value of using the flying-camera trick or goto-terrain-mapping instead of just sending out units to explore goes down so much in relative value as to make these techniques negligibly valuable.
In the last game, for example, had the western Gold, western Marble, and eastern Pig all been revealed from the start, teams could have had a much fairer game that wasn't based on either using these techniques in place of sacrificing one's empire for early exploration, as well as versus those who did neither. Given such a situation, teams could still have done poorly by choosing not to explore FURTHER (missing out on circumnavigation, missing out on meeting the AIs early on), but the reliance on "gaminess" would have greatly been reduced in favour of more strategic decisions (i.e. do we send out an early explorer, costing us a bit of empire development, in hopes of snagging circumnavigation, etc).
I do not profess to be an expert in either of the flying camera or goto-mapping techniques, so why don't we ask experts in those techniques: will revealing some more of the nearby area (a radius of somewhere between, say, 6 and 10 squares around the settler), be enough of a change to reduce those techniques in value so as to make them of negligible use for most cases?