Ultimately I think this is a good thing, and a good point. But I think the unfortunate thing is that historically hip hop has been quite a disposable art form. Every other genre of music has multiple legends who can still make a living off their music today because it's passed from parent (or uncle/granddad/etc) to child. Taylor Swift can do a live performance with Stevie Nicks and cause thousands of 12 year old kids to discover Fleetwood Mac. Meanwhile rap fans today dismiss Run DMC, Whodini, etc as sounding dated or being old. Shit is pathetic.
This applies to the mainstream/underground rift too, although it's less severe. Most kids who listen to this album aren't going to say "wow, I need to find more stuff like this!" Instead this is what's going to happen, IF the album is a big success: some sound from the album will be further mainstream'd by the Camel, others will follow suit, and will have another BMF situation where everyone is doing the same thing again. Meanwhile El-p, Flying Lotus, and others will be left out of the circle of success.