The EMF ("they're unbelievable") are saying that their public service role is "minimal" and that "since they attract the highest radio audiences both stations would prosper in the commercial sector".
But let's face it, one of the major reasons that Radio 1 and 2 attract such high audience ratios is that they aren't commercial stations - however good the DJs or the playlist a station might have, its the annoying adverts that put a potential listener like me right off.
Speaking as a long-time Radio 1 listener (read as: "sad bastard"), I know that the daytime playlist is pretty dismal. However it captures a wide variety of listeners (and especially younger listeners) who will then be introduced by association to the "specialist" evening DJ's - music that they might not otherwise seek out.