RE videos of the Embraer - they look legit to me. Notice how much more impact that landing has on the crowd than the others - hard to fake the blowing sand and reactions.
Have no idea why the low approach was considered necessary or useful.
Literally two days ago (March 5) I stood on that beach (long sad story involving a medevac, that is not germain). Saw only small stuff landing - WinAir Twotters and a copter. The Twotters crossed the threshold about 150 feet up in a steep descent - not even close to the crowd.
There are numerous signs along the fence paralleling the road, warning of low-flying aircraft and physical danger from jet blast - so I figure the people who want to risk it (including me) know the situation.