As far as I recall, the Guardian columnists and leader writers were pretty unanimous in their anti-Ross(and Brand) condemnation. They certainly backed away from any later attempts at general BBC bashing, or "cleaning up",but that is a separate issue.
Broadly speaking, the Mail was anti- Brand, anti-Ross and anti-BBC. The Guardian, broadly speaking, was anti-Ross, anti-Brand(for the specific broadcast), pro-Brand(in general), and pro-BBC in general, but highly angry with the BBC for this specific incompetent foolishness.