Well, considering Apple rippied off HTC's design in the first place for the iPhone 6. Then this is just HTC perfecting the design Apple ripped off.
Not really? Apple had been making aluminum products for years, and they invented the antenna designs. If anything the HTC one was a copy of an original iPad, but it still looked original enough that it wouldn't have bothered me. This however, unless your blind, is an exact copy of the iPhone 6/6s.