I think so Mike. He's placed a patch strip down the outside of the luff sleeve, starting about 30-40mm down from the "cuff" the mast tip goes into.
The weaved material seems light and strong - much better than the original fabric it covers. It looks like it might have even been glued before being stiched.

I reckon if it tears again, it would go at the edge of the repair.
Repaired on time too. They have got me from now on for all sail repairs!!!! Professional performance!!
Any idea how you gain the seam skills?? What a hobby! I can't imagine how much satisfaction would it give to sail what you have designed & stitched??? Are materials like x-ply expensive/accessible? I may need to cut a hole in the shed's concrete floor. Hmmmmmm...