Can we please have more flexibility in height for our characters?

[Raikai]

I still don't think they would just adjust values and call it a day though. It'd have to run through some QC at least to make sure textures don't get warped weirdly or have gaps on at the very least the base models for different gear.

Again, not opposed to the idea, but it's probably more than a bit of work.

But isn't the height scaling in XIV an actual 1:1 proportion ratio with everything?

So, scaling wouldn't really change how gear is displayed regardless. The only issue I could see would be extreme up scaling causing the texture pixels to be even more visible, but doubtful that would be an issue for a 10% increase.