See, I maintain that "they're too commercial" can actually be a valid argument relating to the quality of their music. I think they sound too commercial, they belong to a school of musical activity where their sound and message appears to be directly marketed towards a certain demographic (that being people who like tacky make-out music) and in this commercial approach they have failed to make meaningful or even entertaining music to me. Their production process reeks of the sound of blandly produced inoffensive commercially saleable music and this means I do not like it. I do not like it because I feel they are too commercial.
I would never enter an argument about snow patrol by saying they are too commercial, though, because someone will come along and talk about how I've just got a problem with the man and then mention something else negative about my character because of what they read into me by my choice of words. I'd much rather give a brief, concise argument than say they're sell outs.