Considering HTC started this whole aluminum phone movement, they're not the copycat here (maybe they didn't start it, but they made it big and put other manufacturers on notice). Once again the media played a part in giving Apple credit and forgetting that HTC was first to start the movement. Unfortunately, now they're being labeled the copycat.
It is a copycat field though. I mean look at Samsung adopting glass front and back, iphone 4s anyone? The iPhone 6 copied the design of the One M7 (I think that was the first One with aluminum body). And now it comes back full circle with HTC releasing this A9. No one really wants to differentiate themselves except for Moto, LG, and Sony, just to name the big players in the game.
My opinion, I bet it'll be a great phone with alot of bad publicity because, uh oh, it looks like an iPhone. It won't get a fair shake in the field I think and HTC really doesn't need that because they're already starting to sink. It's not a "miscue" by any means, it's the shape and design of the phone many people want, but the problem is they just blend in now with the likes of Apple.