@inarticulatequilter I'd maybe patch there. Get some sturdy fabric to put over the hole cover both sides with fabric you like the look of and quilt everything together.
Extend an inch or two past the hike so you have space to really do a lot of stitching to make it sturdy. Then try again with the grommet. (Test on scrap first!)
It'll look like you reinforced around the grommet. You could do similar even without making a hole first at the other grommets if you like the look.