I know the largest reason for why they don't release it to the west is because of money. But, if you actually talk to any of the Japanese players or read PSO2 related conversations (and other MMO forums/discussion places for games that aren't being released here), you will find a couple of other things the native country's gamers notice about us and they confirm those reasons are probably, and thankfully, part of the reason why we get skipped.

Stupid quitters
Stupid people who don't res or what until a boss is dead to res (really, losers, I shouldn't be using close to 5 moons per run because no one else will res)
Stupid weebs who are obsessed with lolis and have made the game population among westerners become 10 to 1 female vs. male characters.

You think companies and foreigners don't notice the pathetic mentality of the western millenial? They do. And they hate us. Nice job, plebs.