I'm surprised that the settler was moved before looking at what the warrior revealed. If I'm seeing correctly, the tile 1N2E of where the warrior moved to is not forested. That means 2 partially revealed tiles in the starting BFC (1E2N and 2E) were not forested, and you only have 1 food bonus showing. I'd say that one of those tiles is going to be another food and/or military bonus. You'll lose both of them if you settle NW of the current settler to grab the stone. This seems like an awfully big gamble to me. I think you'll end up hosing your capital if you do this (ie, settle 1W of the original start). Going 1 NW of the original start at least gives you a chance to grab the northern unrevealed tile. How likely is it that the map generator gave you a capital with only 1 food bonus? Given what the warrior showed (or at least hinted at), I think the original starting location is likely to be the best.

All of the tiles of the starting BFC have been either fully or partially shown so far, with 2 of the eastern-most ones forested and the third non-forested. Of the 3 northernmost tiles, only 1 has not been seen, and it's non-forested. Think about it.