I really, REALLY don't like the height restriction on the NA version, but because of such a different reason, let me elaborate.
The NA servers have been steadly catching up in content with the JP one in vision of the shared launch of New Genesis, the supposed GREEEEAT expansion to the game, or, better saying, the whole new game that it'll be.
When NG comes out, it'll be the "new cool game on the block", the shit that a lot of people will come to, as, you know, you don't really need to play PSO2 before to play PSO2NG, you can just hop in one and be happy, a lot of new faces shall come see tafuq is this about and give their opnions... and is there where the catch comes.
When NG comes, people will start their first impressions and reviews of this weird new landscape, combat/gameplay and, very importantly as well, character customization, quite the soul of most RPGs, and how much options you have in chosing different sizes, shapes and colors and how the FINGERS MOVE (OMG ! HAVE YOU SEEN THE FINGERS ? THEY MOVE !), and then, the bomb will drop.
The discrepancy between the versions that will drop simultaneously is that the japan version can have characters that are basically childs, in a game with such a wide array of...erm..."revealing" clothing, and that, will give Japan a bad image.
Not in such a conventional sense, this sort of behaviour has been discussed around the world for a long time, the "loli culture" in japan, thing is, never (at least that I've heard about) something similar has happened in gaming industry before, of a localization limiting customization for such motive, people will look at the japanese version as degenerancy, as something to be disgusted about, and that will spill into soo much more controversy judging not only the Japanese version, but probably the culture in itself (as "loli" characters are quite common there), and the global version ends up with the high ground, being the one which "stopped pedophilic behaviour in a videogame", it's all about cultural difference, but in this scenario, history will not see it that way.
That bad image will be terrible for the industry as well as the people, but, this is just one of the possible outcomes in the foreseeable future.
What I mean by that is...the opposite could happen, perhaps, the change in the height cap, can be implemented on the japan version before all that happens, I say this, because they have the perfect excuse for such a thing, being that "the changes on the characters customization modeling restricts some options" or some shit like that, hell, they could even say that for the "moving fingers" to work the game needs to have a height cap, soo, NG drops, and all the previous very shorts characters are either prompted to be remade on the new graphics engine, or just scaled up to the new cap, boom, the game didn't implode from a media perspective...immediatly...
Because such decision WOULD angry the fan-base, which would promply ask back their "loli" characters, and that behavious would then be the spotlight instead of the game in itself, the fans that want the minimum height back, and we've come full circle.
In any ways, the global decision comes on top winning, and paints japan in a even worst image than it already has, being honest, this may be what they've been thinking with the cap since the start.
Soo...yeah...it's a problem, like, I don't really care about smart inner and some quite useless cutscenes, some people like it, I don't blame em', I just don't like PSO2 story in general (FUCK YOU MATOI), but that height thing will be a problem that just can't be addressed correctly, we can try all we want to bring attention to it, at the end of the day, it'll not change, I mean, at least, it's very unlikely...VERY UNLIKELY to happen, and probably shall be the rule to defining what will happen in next years as well, mark my words, the cap will spill to the japanese servers as well.