Yes Jerry, I agree.
Shops want to use a patch on the inside becasue it is a more reliable method of repair. My suggested roadside tire repair method using the sticky rope gets RVers back on the road quickly. If they are not comfortable with that as a long term repair, then they can get it repaired better at their convenience.
For myself, I have no concern using the sticky rope for a permanent repair, as long as the puncture is clean and in a good spot on the tire. The best place is in thick thread or tight thread area, for more depth for the rope to do it's job.
In the case of RV tires, most get replaced due to age & cracking, not from thread wear. This makes using the rope, less a concern.
Just my opinion on that.