I’ve read up on it a bit, but I don’t really care much for FR, so I’ll probably not ever do a deep dive.
My point was simply that it only happened in FR, so unless they decide to bring it out into the wider multiverse, it doesn’t belong in a book like MToF.
We know Dwarves in various settings like Greyhawk, Dragonlance, FR, ect... are discussed thank to the article in Dragon+, it'd be shocking if this is not also true in FR. The Crown wars are an event that is too important not to mention in the FR section.