I doubt that, the American audience can be very very very fucking shallow. Action series are "no fun allowed" zones over here. Gotta be totally serious and have a super serious art style otherwise you're dead in the water, even then they don't want totally serious they want what they think to be totally serious (basically totally serious for a pre-teen/teenager). If they actually wanted totally serious then Black Lagoon would have been the highest rated show on the block.
I think western anime fans really love edginess more then anything.
Remember the kids that wore Jack Skellington shirts and had fingerless gloves, generally those are the biggest market for anime outside of kids. Western anime nerds generally dont buy much anime (although this is starting to change) and also generally dont liked dubbed anime.
Like I said, Dio will resonate incredibly well, and word of mouth alone should give Jojo, and let's also ignore that Black lagoon has a "sexy anime lady" being advertised heavily which a lot of people will see and just pass on 8it before seeing it