The 380 is in the ‘super’ category for wake turbulence – aircraft behind it on take off and landing need a larger margin than other aircraft (including the jumbo) because of that. Great for the 380, PITA for everyone else!
It certainly wasn’t flying ‘neutrally’, the jetmen would have been going flat out, whilst the 380 has lots of flaps/slats out to enable it to fly slowly
The danger of wake turbulence shouldn’t be underestimated, but it’s a well known and understood hazard and as long as some simple rules are followed its not a problem – think air to air refuelling, formation flying etc.
Still, cracking bit of film, some crazy dudes out there!