I know that at my grocery, I can buy undried herbs, like basil, parsley, rosemary and cilantro. They come in special packeages and are kept refrigerated. They look pretty 'wet' to me. I can also walk over two isles and buy dried herbs, like basil, parsley, rosemary and cilantro. It is obvious that these are dry, however, only if they are dated do you know if they are fresh. Same with the refridgerated product. I don't know of any lingo that translates to all passions, hobbies or vocations. Like someone said, often it is about marketing and drawing attention to your product. Is Cognac really just distilled grape alcohol? Is Champaign just sparkling wine? Why have appellations and business specific lingo? Sometimes it is all that sets your product apart from another. Is there really a difference between bud/miller/coors? Billions are spent trying to convince you there is....
Dried is used as an adjective to describe the hops. Wet is an adjective used to describe the hops. Fresh is an adjective usd to describe the hops. Seems like beer enthusiasts are trying to make them nouns, like they are their own new 'thing'. If we use our adjectives correctly in font of the nouns (hops), then there really is no confusion, although we may disagree on how long after picking hops are considered 'fresh'. If breweries are not specific with their descriptions, then we are left to make assumptions, which is their faux pas. Wet hops can be fresh. Wet hops can be old. Dried hops can be fresh. Dried hops can be old. We just need two adjectives in front of the noun as a description of the hopping: moisture + time.