If push came to shove in the Australian market, perhaps an QF-A380 will take out a V jet in this accidental way.
That's quite an offensive comment to be honest.
Parking with one's tail over the obstruction line was a habit that Ansett developed late in its life. Aircraft approaching the holding points would stop well short of the holding point, with their tails over the obstruction lines. That would stop any traffic passing behind them. It was quite pointed, as it was only done if the traffic on the taxiway behind was painted a different colour. Also incredibly unprofessional. Bloody stupid too, as eventually someone won't notice, although that's less likely with the smaller jets (737/320) that were normally involved.
But, as I see this incident....
Firstly JFK is a bloody woeful place to taxi around. Narrow, no fillets in the turns, traffic everywhere, and controllers who speak at a million miles an hour, in some language other than english. And who can be terribly unforgiving of someone who needs a repeat of an instruction.
The ATC tape indicates that the A380 was appropriately cleared to taxi, and had not gone past any limit points.
Whilst the 380 looks to be fast in the video, a bit of maths shows him to be doing about 15 knots, which is quite an appropriate speed. You cannot see the wing tips at all in the 380.
Smaller aircraft are often just about invisible at night. Especially on the apron areas, their lights can simply disappear in amongst the myriad other lighting displays.
The regional jet appears to have stopped well short of his gate. In so doing, he has left his tail infringing the clearance lines of the taxiway. ATC would have expected him to have crossed the line, and to have said something about it if he hadn't. Very likely stopping in that position was standard behaviour, but it only became an issue when a 380 crossed behind, even though it would be equally 'illegal' for any other aircraft.
Fault...well, at the end of the day, if you run into the back of someone in your car, it is always your fault, no matter what stories you can think of to try to justify it. Same applies in an aircraft...if you run into something whilst you are moving under power, it's your fault. But, I expect there are quite a few mitigating circumstances here, with some level of help having been provided by both ATC and the RJ.