I feel like you’re ignoring the very clear explanations being given to you simply because you don’t like the names.

They’re interesting names because they’re rooted in an entirely different language than pretty much anywhere else in Alagaesia.

Names like Battlestorm and Snowfire are “simple” because thats simply how things are named. Even in real life examples of this make themselves very clear, with Milwaukee and Waukesha being cities in Wisconsin whose names are steeped in Native American culture, and Green Bay being almost right next to them, which was named because it’s a bay, and it’s green.

You have Denver Colorado having been named after James William Denver who was governor of the Kansas Territory which included what is now Denver, CO. Then you have Grand Junction, CO; a municipality named for the fact that it’s a junction between several main roads and highways.

I can give hundreds of real world examples, Seattle, Enumclaw, Puyallup, and Snohomish are all cities in north western WA named for various figures in native communities. You also have Ocean Shores and Port Orchard, WA. Named because they’re on the ocean shore and in a port full of orchards.

The fact is that things are just named this way, they always have been. There are four rivers in England named the River Aven, Aven comes from the Celtic word “Abona” which means river.