Haven’t seen this problem on my Rises, but suspect the cause of this wear on what appears to be both the LE and the pigtail is sand trapped between the two. That harder re-inforcement on the ‘09 LE may last a little longer, but even it will get chewed away by sand, it’s so abrasive.
Try this - as soon as you’ve launched and are on the water, dip your kite’s wingtips in the water to flush the sand out, both sides. This also helps reduce wear on the pulleys and the lines that runs through them.
If the holes are small like that in your picture, a patch of sticky-back Dacron sail cloth should fix it. If the hole goes right through, put one small patch just bigger than the hole with the non-adhesive side over the hole so the bladder doesn’t stick to the patch, with a larger patch sticky-side down to hold it in place. Make sure you clean the LE well with a de-greasing solvent like isopropanol alcohol, and then gently warm the patch with a hair dryer and lots of pressure to really set the adhesive.