Disperse Siblings have a huge impact on memory because the interference between siblings can make change the real value of answer buttons.
The FSRS Add-On have the option to Auto Disperse Siblings, but some users only use the mobile version of Anki.
Beside this, the “Bury Card” Option, only move the Sibling to next day. This is not enough to reduce interference, only make users see the same content one day after another.
So make this feature native is very important in algorithm point of view.