SYSnand is modified by SDnand System Settings

[bepaque]

Here's what I discovered:
Changing settings while inside hiyaCFW causes the SysNand versions of Download Play and Pictochat to use the updated settings, even though they should be separate.

I'll provide an example:
Let's say that my sysNand username is "foo" and my sysNand color is blue.
When changing my sdNand username to "bar" and my sdNand color to red, the sysNand system apps, such as Pictochat and Download play, do reflect the change, but the sysNand Launcher does not.
This effectively results in the sysNand Launcher saying I'm "foo", but sysNand Pictochat saying I'm "bar".

Is this intended behavior?

I discovered this while using Yoti's hiyalang to change the sdNand's region to EU, this software modifies only the SD card, as it is ran on the computer.
Through the sdNand System Settings app, I changed the language of sdNand to English.
This, however, also changed the language of the sysNand's Pictochat and Download Play apps to English as well.
These changes persisted even after removing the SD card that has hiyaCFW installed on it, and booting to the stock Launcher without any sd card.
After this, I suspected that this is not intended behavior, and I did a test with usernames and colors, which should not involve hiyalang.
These tests showed the same behavior, causing mismatches between the sysNand Launcher and its apps.