There is nothing mentioned about the need to ziptie it on the mfg homepage: http://kitehero.com/
(where there was a mounting instruction posted previously).
The only instruction provided is to mount the leash on the camera so it does not fall off the lines, but that leash is not preventing the lines to come loose and snagging.
I have mailed Kitehero and asked them to change design or provide zipties to the mount when its sold. Lets see if they can provide a comment here.
We cannot assume that everyone will figure out that the zipties are needed when they buy the line mount. I read about the mount here on kiteforum before I bought it, but did not notice any advice/need to ziptieing it to the lines...so no, the need to ziptie the mount is not common knowledge. And everyone is not reading kiteforum. So LKitehero should take their responsibilty as mfg before anyone gets hurt.