I can’t ignore this anymore! Something should be done about it!

[Eekiki]

re adjust the tilt of the pelvis so the back is straight "Not on an odd angle" could be enough to make the Female Miquo’te model look normal again.

This. I can tell because when watching a female Miqo'te running or walking, that animation is unchanged from version 1.0. When you see it that way, it looks normal.

So it has nothing to do with lowering the poly count. It's 100% related to how they've posed the skeleton. It should be simple to fix, and it wouldn't make any difference from a memory standpoint.

tbh they made even wearing normal armor unappealing if you have a tail. There are no more tail holes cut in any of the armor. I don't even understand why they did this. Now all I see is my tail clipping up and down through my armor as I run around.

This too.