Is The Guardian's Sea Named After Janna?

If you look on the map, to the east of Piltover and Zaun is the Guardian's Sea.

If you know about Janna new lore then you know that before she became heavily worshipped in Piltover/Zaun, she was proclaimed as the watcher of Runeterra'a oceans, but primarily worked near what would become Piltover.

We also know that her name "Janna" is Shuriman for guardian, only furthering the connection.

So, to repeat my title, is the Guardian's Sea named after Janna?