If you only held events with a top class WAG competition there would be literally nothing other than the Olympics, Worlds and some continental championships. Is that a sustainable path for the sport? It might be where we are headed anyway. MAG clearly has no problem getting high quality gymnasts for these events, so maybe the criteria for hosting should be interest in the men’s side of things.
Holding it in the Americas would maybe attract a Brazil B team. The US and Canada are both already represented in Cairo (and really, outside of Ellie Black (injured) and Shallon Olsen (NCAA) do Canada have anyone really notable on any particular event?) The last apparatus event in the Americas (Sao Paulo Challenge Cup 2016) had three apparatus without even the full 8 entries for a final. Events in China and Australia were similarly bad, even when Australia was an Olympic qualifying event.
Holding it in the Americas would maybe attract a Brazil B team. The US and Canada are both already represented in Cairo (and really, outside of Ellie Black (injured) and Shallon Olsen (NCAA) do Canada have anyone really notable on any particular event?) The last apparatus event in the Americas (Sao Paulo Challenge Cup 2016) had three apparatus without even the full 8 entries for a final. Events in China and Australia were similarly bad, even when Australia was an Olympic qualifying event.