Once again Jerome has the info.  I had not looked at the kiting info (since I don’t kite)  but the club does indeed have the policies in place to prevent this issue.  As evidenced by the video, the paraglider instructors need to be more insistent with their students about the club policies.  People may note that I reference instructors more than students, I am a helicopter CFI and CFII and instructed for many years.  Liability issues with helicopters are huge so instructors have to ensure their students follow the rules.  HG and PG should not be different.  There may not legalities or lawsuits at issue, but serious injury or worse is always a possibility from not following policy or good advice.