Having been in and around FJs for quite some time, that angle isn't exactly unusual. I too remember the M2000 shaped undercarriage holes in the Waddo fence in the 90s after an ACMI mission.
The Manual of Aerodrome Design and Safeguarding requires the approach surface to miss the road by 4.5 metres. The civvy CAP168 requires a bit more at 4.8 metres (yes another whole 30cm!). That is aiming at the runway strip that starts 60m before the declared threshold; so that eats into the 640ft that BEagle has measured quite significantly! So at ~15ft over the heads of these numpties, I don't believe that the viper driver has broken any rules on his approach.
As for the idiots in the undershoot - ever heard of Charles Darwin? And as for the idiot waving his walking stick, well that just beggars belief and is typical of the type of numb-skull that will complain afterwards that they were nearly killed in the local rag.