I wish...
It were that simple.
We cannot easily (or even difficultly) measure the fluid responsible for the tendrils and lobes of the "splash" crater.
"That was then, this is now"
Things may well have changed.
What drives the channels down the nearby slope is (probably) a near-surface seasonal phenomenon.
What drives the tendrils was the release (probably) of long-term subsurface volatiles by the impact event.
We cannot safely correlate the two processes.
Can you post a link to the MSSS originbal page so we can see Lat, Long, Ls and other useful data for this image?