Is “平定方腊” true?

Water Margin downplays the achievements of the government army in suppressing the rebellion; according to the "History of Song: Biography of Tong Guan," Tong Guan, as the Pacification Commissioner of Jiangzhe, was actually the commander who led troops to quell the Fang La uprising. The original text states: "蔡京、童贯主之。" ("History of Song: Biography of Hou Meng")