The problem of BA is not only a matter of JP vs EU/NA playerbase:

Ok we assume everyone go on Discord, but what happens if there are 57 players? One remains outside.

Portal snipers are a problem but BA design is also a problem.

Several people asked Raid with more players than 24 but the reality for someone who is in FFXIV since ARR is 8 players for raids are already a problem for statics (I've seen a lot of drama and uncomplete teams). Then we have asked raids for less players. No reply.

People who are not interested to go on Discord maybe just think : ok what if we have to spend two hours organizing team to play actually ten minutes (it happens for raids and extrems). Does it worth it? What if there are more than 56 available players and less than 112? Who will sacrifice himself?

There's no jugdment. Just few afterthought.