The U.S. Department of Defense has declared this patch must be worn, right or left shoulder, so the star field faces forward, or to the flags own right.
https://www.warhistoryonline.com/guest-bloggers/facing-forward-american-flag-appears-reversed.html
When displaying the flag against a wall, vertically or horizontally, the flag's union (stars) should be at the top, to the flag's own right, and to the observer's left.
Painted on an airplane is the closest parallel to displaying on a wall. Check mate.
No number of well-intentioned entities doing something incorrectly make those errors correct.