Literally almost every single original design Frontier has come up with (save for a few oddballs) have been with the intent for a more accurate design. And those inaccurate oddballs are overall really disliked. People are really enjoying the attempts for accuracy, even though they have made some misconceptions (Ouranosaurus supporting a hump and being way more like Iguanodon then it actually was), but they're still aiming for it. Why the hell would anyone want them to toss all that awayHaving spikes definitely would make it stand out enough, but the sail would give it extra flair. I'm not doubting what you're saying about the Amargasaurus not having a sail, but dinosaur accuracy is definitely not JWE's strong suit. In fact, I feel as if dinosaur accuracy is not a strong suit of the JW and JP franchise as a whole, but that's okay. Because of this, I wouldn't mind if Frontier took some creative liberty and gave the Amargasaurus a sail.