They kinda did tho, but things really just got weird around 2011, the whole Borstep, Funky, and Electro/Euro Dance thing, just knocked everything out of wack.
Essentially the whole 140 scene was birthed out of that sound. Long as my guys(Anti Social & extended family) are still doing their thing, i'm all good.
But i'm done with dealing with genres, it's just impossible today for genres that are mainly followed by young people to really grow(explains why the Soulful/Deep House scene as a whole has always been consistent, and has always evolved naturally, their audience has and will always been older than other genres). I was lucky enough to experience Hip-Hop, Drum & Bass, Reggae before they got turned upside down.
What's happen honestly, is that too many fukkers are making and releasing music, most genres before the digital age, really only had a handful of people who were really putting out music on a prolific level. But now so much music is out there, and so many people are coming into genres without any knowledge of the history or culture of the genres.
What I notice in particular with a lot of English Electronic/Dance/ Urban(whatever)genres is that. A genre starts off very multicultural, leaning heavily towards the Black side, then within a couple of years, you get young White males, who are very different from the Whites who where there from beginning coming in. And they totally change the sound and style of the genre, mainly in more Industrial or fast and louder way. And shyt splinters, you get ten different Sub-Genres, then you have a big Old Skool revival period, cause the genre has evolved into shyt or everyone just run out of ideas(ala Drum & Bass)
Or everyone wants to go mainstream, and the genre gets completely fukked. Worst thing that happen to Grime was Dizzee's mainstream success, fukked up the head of just about every Grime artist after him. Same for UK Garage around 1999 to 2001, and you saw it with the Funky scene too. Bad Company, Pendulum their success to me crippled D&B.