>>87082866The only time he's compared them to Chronoir is when he was talking about derivative works/lore and the potential of Asuizu in that regard. Even when they've finally become a proper unit I don't think Izuru will ever be interested in pursuing lore-based content like Chronoir does. I don't know how much input they have in the official made-up scenarios, but you may notice in almost all of them Astel is always the one pursuing Izuru or "driving" the plot between them.
That said the real issue with Bratt is that both of them have a severe case of "I do what I want." So even when external factors come into play (like getting attention from going viral or you know, forming the unit), they'll continue to just stream like they always do. The thought of "we should do more collabs to push Bratt" probably hasn't even crossed their bratty minds.