I wonder if any religion holds in a 'starting seven.'
Ask the people of Westeros?
(Well, more a septuinity of aspects, I think, not being sufficiently immersed in the lore. Though creation myths often have godly avatars create their own "first born" mortal to interact with others' own inventions, leading to an earthly reflection of the heavenly politics before one or other system implodes and goes fuzzy. JHVH just cheated by cut'n'pasting from His original to create the second individual. Maybe because it would have been weird to have had the Father and the Holy Spirit create their own humans separately, all the while telling the Son that he couldn't play with the clay because He hadn't even been born yet. Or something. IANATheologian.)
I think seven is a funny number. Too high to be definite (solo, pair, even a pair of pairs or a handful) too low to be "oh, like multitudinous aspects, we're a bit fuzzy about the numbers". SFAICT, seven works best when trying to establish a Rock-Paper-Scissors sort of circular hierarchy-of-'equals' and you think five is too low/clichéd. (Don't know if that made George R. R. a fan of Kingdom Of Loathing or not...)
Nah, he was doing a minimalist embark and just threw it in once he realised the caravan wasn’t coming. Forest embarks aren’t much fun without picks or axes.
Apparently, there wasn't any booze, and not even an anvil (though there was at least one flaming sword added in, probably tied up most of the embark points). And wasn't this the version where zoning could sometimes be ignored by fruit-pickers?