So another case of US science then?
«This dinosaur probably used its frill to attract mates»
Yes, that is now a scientific fact I guess. It must be true because that's what any drunk young labgeek would do with such a thing.
Reminds me of how the national Natural History museum in Washington (District of Columbia, USA) has a quite lenghty description of how and why the Easter Island statues were erected and why they face the land and not the sea and what was their role and how they were used in which celebrations, to what avail. Despite no-one actually knowing the first thing about any of it as the people who set them up mostly disappeared due to -maybe- ressource shortage and -for sure- european incursions without leaving any convincing cultural trace and next to no archeological clues (besides the statues themselves, that is). Pure gratuitous speculations presented as hard demonstrated facts. By the "largest museum in the world". And people wonder why some yanks don't trust science anymore.
Not that it matters anyway, as this "new" dinausor will probably be debunked as a complete fabrication from random bones in a few years. Or failing that, will be matched to something described 20 years ago by a european or asian lab (as US scientists have a nasty habit of only checking US scientific litterature). Or failing that, the name will be overturned to something more academic (and actually fitting in the -quite loose- naming standards) in 10 years time.