Welcome, binary!
Normally cities should be founded on the coast, yes. In this case the city only has one coast in the BFC IIRC, so it's practically an inland city. And it was placed the way it was to grab resources and river grasslands. Although placing it on the coast would certainly have been a valid option, and would have allowed Spullla to explore Centralia sooner. (Especially seeing how their fledgling harbour city on the inner coast got razed this turn).
Normally cities should be founded on the coast, yes. In this case the city only has one coast in the BFC IIRC, so it's practically an inland city. And it was placed the way it was to grab resources and river grasslands. Although placing it on the coast would certainly have been a valid option, and would have allowed Spullla to explore Centralia sooner. (Especially seeing how their fledgling harbour city on the inner coast got razed this turn).
I have to run.