In my opinion, to say something can't be used in a certain way simply because the manufacturer doesn't say it can be is a complete contradiction to the essence of DIY. If that were the case then we should never use a sit-drag or fleece saddle. What about the scooter or LW handclimber platforms? Amsteel was also never intended to be used as a rope mod on climbing sticks. Sometimes DIY exists for the purpose of repurposing something it wasn't originally intended to be.
As for the topic on hand, by no means an I going to claim this is completely safe and everyone must do it. I, on the other hand, do feel comfortable playing with it for the purpose of research to see if this is a viable option for ME.
Sent from my SM-G955U using Tapatalk