I thought it was because of the influence of jeezy/rick Ross etc which is obviously there since they use trap beats but actually I feel like trap beats have caught on in ldn rap due to how well they fit with that London way of speaking.
As a writer about rap music it has weirdly not occurred to me how the way ppl talk in a region must feed into how they rap. Rap technique is often viewed as something that's developed entirely consciously, like its been drawn up diagrammatically. It would be interesting to compare rappers flows to how they speak conversationally.
with jeezy n rick ross i mean they were big artists round 07/09 but in terms of stylistic influence id downplay that
i mean around that time most guys were going over really old east coast (alchemist, heatmakerz) beats or homegrown productions (boomblast, uni-vs, dirty saj for most of giggs/sn1s stuff) anyway
as far as trap beats go these days everyone is rhyming over them, as far as influencing uk rappers to use trap beats id say the chiraq wave was much more a factor than jeezy/ross
not to say everyone (not me) wasnt listening to jeezy/ross in 07/09 cause they were