The committee may choose to report with regard to a particular individual minister as opposed to the government as a whole. That's the committee's call. In the House, the House may choose to take that incident as reflecting the whole government and choose to frame the motion in the House in terms of the whole government.
But as a rule, committees should stick to the facts they have before them, and report those facts, and not go beyond those facts and make inferences of a kind that may or may not be supportable later in the House.