DMC3's level design literally plays like God of War with lite Zelda elements, though. So unless you're saying God of War doesn't have very good level design either (which I would agree with, it's above average but it isn't great or anything), I don't get your point.
That's another thing. As much as DMC1 and DMC3's room are often just boxes for player expression, they also are interconnected worlds in an almost Metroidvania like sense. That's not something God of War really did till 2018.
And that's not to rag on God of War, moreso saying that even if it has lite Zelda elements, they were very superficial in the old games at best, nothing to write home about. If that actually makes the game automatically have better level design than Devil May Cry because rooms aren't just boxes for player expression (as if level design isn't about how to get the best out of a specific game), we have a serious problem in the games industry.
It's funny because even God of War 2018's "level design" is a super mixed bag, in fact it might actually damper the quality of the game moreso than a lack of conventionally great level design ever does in the DMC or old GOW games. It has an interconnected "world", which is actually quite interesting, until it isn't and you realize getting anywhere is a fucking slog and a chore, super slow, and that the world isn't that interconnected to begin with.