Your sentiments are echoed by many, swerve. To me, perhaps a quarter (maybe less) of the songs listed are worthy.
We all know music progresses and the station is now "corporate", playlisting what we SHOULD hear, not what we WANT to hear. Even attempting some sort of street cred from playing "most blogged" artists seems like they're playing "catch up" - always the follower, never the leader.
The internet has given us a whole world of alternatives. Personally, I've come to appreciate Australia's Triple J, a national station (what CBC Radio 3 should be) boosting they're own artists as well as the world's. Their programming tastes are quality, to my ears.