>>54767857No. Vermilion is the closest to Saffron and Celadon, where most of Kanto's GDP must be concentrated, reducing the cost associated with land transportation.
And ports should be preferably built in sheltered waters. There's a reason why most of the world's largest ports, like London, NY and Rotterdam are built by rivers instead of beaches. Vermilion City, much like Gdansk, Manila, Rio de Janeiro and most importantly Tokyo, Vermilion benefits from being a bay city.
So Vermilion is a much better candidate than Fuchsia or Celadon for a port city. And this design choice was very likely influenced by the Port of Tokyo too.