I confess mental and fiscal fiber to keep mechanical things working with admittedly wins and losses. My conclusion is that this repair has minimal risk after contorting and pulling on the HT cable repair during a several hour test without it missing a spark.
And... as mentioned... the plane it will go back in is at minimal risk to making it back to the runway. It quit near the edge of its pattern and landed safely with ease. I agree with Bert once again, there are planes in the fleet where a concern factor would be in play.