Skrillex is actually regarded as a leader in Brostep, a subgenre and/or style of Dubstep. At least in the USA, Brostep has practically supplanted Dubstep and co-opted the name. This has been occuring for about the past 10 years. A big factor is the "drop" part of Brostep sounding very attractive to non-EDM people who head-bang, and to whom traditional Dubstep would be percieved as "boring" or not stimulating enough (without intoxication). This has led to a re-enforcing cycle where domestic EDM festivals reach greater audiences, and so they keep promoting Brostep as Dubstep.

Personally, I'm not a fan of this shift. I prefer EDM from the era of the track you linked to, and/or contemporary artists who emulate the older styles.