This was fun! You can be tricked into believing this is not based on Herringbone Stitch.
Here the Satin Stitch has a gap, I think if I do this stitch again on Aida I will use a sharp needle and make another Satin Stitch in the middle, too.
Sunday Stitch School Reference Chart
Good in two colours!
Teal Wool Tailoring Scribble Cloth
It could be used for a grid, as a filling stitch,