There seems to be a fine line when it comes to science fiction ship/hardware design, between making something look plausibly practical and making it look “cool”. I agree with you in that they seems to have bent over backwards design-wise to make this resemble a bird-coming-in-for-the-kill, complete with curled-in wings and nacelles that are positioned like claws/talons ready to strike. I still think it looks cool, but yeah…that whole curled-in hull at the sides is a bit WTF.
But that’s the beauty of scifi: there’s always a nerd right around the corner ready to retro-engineer it for us so that it all makes perfect sense!