@ Steffen – yes, another potential failure point for an unskilled user, or someone not paying attention. It could be made an optional feature by way of setup button to avoid that issue. IE, you’d have to be really intentional about turning it on in the first place.
@ MFK – dual mono matrices would still reflect the stereo image if L and R are patched directly in to them as opposed to summing each side via send.
It’s a waste of limited buss resources though, so I would still argue adding the option for split delays @ ST auxes would be incredibly useful for a limited number of scenarios.