Had the video not been 'shared' all we would have seen or indeed heard is a bare two line summary of the accident published in 6 months plus it would have disappeared anonymously into the general accident statistics for 2017 published sometime in 2018.
By which time no one will care, everyone will have forgotten and nothing would have been learn't....
Notice how it is not been mentioned at all on UK glider pilot dot net: clearly not a suitable discussion subject.