Something else to keep in mind, it appears as though the Machinist "guildmaster" is a male Miqo'te, and his workshop is in Ishgard. We don't know when he arrived, but we do know Ishgard has had airships for some time. It's very possible that this machinist could be part of the reason for that, though it's obviously all speculation until we get in there to see for ourselves.
Food for thought.
Food for thought.