to be fair to them, yes they have made some decisions in their music making which have been influenced by career ambitions with references to who they have worked with and styles (dubstep / hip hop / dance) and genres in which they produce, but i cant imagin them ever compromising on quality.
theres some of their tracks that dont float my boat but at the minute and listening through no more idols, and more than alot for that matter, you can see that no matter what ur taste in dnb, dubstep or woteva, there is a little bit of summat for everyone and at top quality production as well. theyre still making dnb bassline rollers n dirty music just not doing a whole album of it to please the hardcore, purist dnb heads.
fair play to them if you want my opinion, they have possibly become as big as you can get as a producer in this scene and beyond. clever decisions got them where they are and they know how to work the business, which after all is their job and you cant argue with numbers and success. look at pendulum, they totally turned their back on dnb as a whole let alone the purists and i gaurantee c&s will be around long after pendulum have ceased to be a 13 year old boys wet dream.