Watching and listening to mashups like these, I liken them to some flashy and fast guitarist playing a lead. I just keep thinking "wow, that takes a ton of skill," but that doesn't make it good music.
There are some great songs with quality fast and flashy leads, and there are some great songs made with mash-ups (Girl Talk's mashups comes to mind since they also have a good live experience). However, this is not the future of music.
Sampling has been used to make music for the last quarter century, and these mashups are just the logical extensions of that. It is just another tool for making music, and adding video doesn't really add much to the experience.
This is actually a very interesting event. I wonder if the aftermath will mirror real world events where such a large vacuum was created after the fall of a superpower, or if BoB will simply be able to rebuild in a few months.
Since GoonSwarm is now supposedly a lone superpower, it will be interesting to see if they can destroy the remnants of BoB and any other opportunistic alliances.
If they complete the hegemony and essentially control the entire EVE universe, what will happen then? Will they all lose interest, will they subdivide into warring factions, or will they simply weep without any more worlds to conquer?