Very simple, they made it!
when they came back we didnt really know what was going to happen, being totally honest i thought that they were going to do just fine, play some medium shows, probably losing their headliner status but they cameback really strong.
they are so big right now because the fan base who goes to their conccerts or buy stuff its mostly YOUNG FANS , just look at that video, the guys who experiencied their first LP concert was massive like 90 to 10.