Hi,
Sorry for the delayed response. This was released a month or so ago: Filter collection lists by multi-reference fields on template pages
Does this not help you?
What does sorting from Ascending or Descending order provide for multi-reference fields?
If there is context behind it and enough users wanting it, I can take it to the team for a feature enhancement. But I will need more than just I need it. What will it do for you now?
Have a Great Day and Happy Designing,
~ Brandon