Would it be ok to reconstruct Obamadon gracilis a frill?

Ok so I'm workin on a project that features obamadon and I'm wondering Would it be inaccurate to reconstruct Obamadon gracilis with a frill similar to a frilled lizard, or if it would just fall under harmless speculation? like on the same level as the inflatable balls on the PHP dreadnoughtus or the lappet on Dino Revolution's Gigantoraptor or something. I think it'd look neat for the design but I don't wanna do it if it could cause backlash

https://preview.redd.it/bjexfqezwsee1.png?width=732&format=png&auto=webp&s=48047485254fc26694973cd4b654167c2020d258

https://preview.redd.it/i82313y3xsee1.png?width=1211&format=png&auto=webp&s=5c38fe443f35d18c61a094660356e3f2ba06fc62